Sorry buy im not a linux admin, here is my message log. (You will find some remove/add printers logs just for test purposes).
Jan  7 15:49:41 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5051]: /home/e-smith/db/accounts: OLD hp=printer|Address||Description|HP Laser|Location|usb/lp0|RemoteName| 
Jan  7 15:49:41 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5051]: /home/e-smith/db/accounts: NEW hp=printer-deleted|Address||Description|HP Laser|Location|usb/lp0|RemoteName| 
Jan  7 15:49:41 server esmith::event[5052]: Processing event: printer-delete hp 
Jan  7 15:49:41 server esmith::event[5052]: Running event handler: /etc/e-smith/events/actions/generic_template_expand 
Jan  7 15:49:41 server esmith::event[5052]: expanding /etc/printcap  
Jan  7 15:49:41 server esmith::event[5052]: expanding /etc/atalk/papd.conf  
Jan  7 15:49:41 server esmith::event[5052]: generic_template_expand=action|Event|printer-delete|Action|generic_template_expand|Start|1294422581 338042|End|1294422581 690581|Elapsed|0.352539 
Jan  7 15:49:41 server esmith::event[5052]: Running event handler: /etc/e-smith/events/printer-delete/S15delete_printer_tdb 
Jan  7 15:49:41 server esmith::event[5052]: S15delete_printer_tdb=action|Event|printer-delete|Action|S15delete_printer_tdb|Start|1294422581 690982|End|1294422581 694787|Elapsed|0.003805 
Jan  7 15:49:41 server esmith::event[5052]: Running event handler: /etc/e-smith/events/printer-delete/S15printer-delete 
Jan  7 15:49:41 server esmith::event[5052]: S15printer-delete=action|Event|printer-delete|Action|S15printer-delete|Start|1294422581 695278|End|1294422581 840751|Elapsed|0.145473 
Jan  7 15:49:41 server esmith::event[5052]: Running event handler: /etc/e-smith/events/actions/adjust-services 
Jan  7 15:49:42 server esmith::event[5052]: adjusting supervised smbd (sigterm)  
Jan  7 15:49:42 server esmith::event[5052]: adjusting supervised smbd (up)  
Jan  7 15:49:42 server esmith::event[5052]: adjusting supervised lpd (sigterm)  
Jan  7 15:49:42 server esmith::event[5052]: adjusting supervised lpd (up)  
Jan  7 15:49:42 server esmith::event[5052]: adjust-services=action|Event|printer-delete|Action|adjust-services|Start|1294422581 841244|End|1294422582 84057|Elapsed|0.242813 
Jan  7 15:49:42 server esmith::event[5052]: Running event handler: /etc/e-smith/events/printer-delete/S90atalk-restart 
Jan  7 15:49:42 server esmith::event[5052]: Shutting down AppleTalk services:   
Jan  7 15:49:42 server smbd[5058]: [2011/01/07 15:49:42, 0] smbd/server.c:main(990) 
Jan  7 15:49:42 server smbd[5058]:   standard input is not a socket, assuming -D option 
Jan  7 15:49:42 server atalk: papd shutdown failed
Jan  7 15:49:42 server esmith::event[5052]:   Stopping papd:[FAILED]
  Jan  7 15:49:42 server nbpunrgstr: Can't unregister server:Workstation@*
Jan  7 15:49:42 server esmith::event[5052]:   Unregistering server:Workstation: Can't unregister server:Workstation@*  
Jan  7 15:49:42 server atalk:   Unregistering server:Workstation: failed
Jan  7 15:49:42 server esmith::event[5052]: [FAILED]
  Jan  7 15:49:42 server nbpunrgstr: Can't unregister server:netatalk@*
Jan  7 15:49:42 server esmith::event[5052]:   Unregistering server:netatalk: Can't unregister server:netatalk@*  
Jan  7 15:49:42 server atalk:   Unregistering server:netatalk: failed
Jan  7 15:49:42 server esmith::event[5052]: [FAILED]
Jan  7 15:49:42 server atalk: atalkd shutdown failed
Jan  7 15:49:42 server esmith::event[5052]:   Stopping atalk:[FAILED]
Jan  7 15:49:42 server atalk: afpd shutdown failed
Jan  7 15:49:42 server esmith::event[5052]:   Stopping afpd:[FAILED]
Jan  7 15:49:42 server atalk: cnid_metad shutdown failed
Jan  7 15:49:42 server esmith::event[5052]:   Stopping cnid_metad:[FAILED]  
Jan  7 15:49:42 server esmith::event[5052]:   
Jan  7 15:49:42 server esmith::event[5052]: serviceControl: Couldn't system(/etc/rc.d/rc7.d/S91atalk, stop):   
Jan  7 15:49:42 server esmith::event[5052]: S90atalk-restart=action|Event|printer-delete|Action|S90atalk-restart|Start|1294422582 84460|End|1294422582 686905|Elapsed|0.602445 
Jan  7 15:49:42 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5051]: /home/e-smith/db/accounts: DELETE hp=printer-deleted|Address||Description|HP Laser|Location|usb/lp0|RemoteName| 
Jan  7 15:49:55 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5112]: /home/e-smith/db/accounts: OLD hp=(undefined) 
Jan  7 15:49:55 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5112]: /home/e-smith/db/accounts: NEW hp=printer|Address||Description|HP Laser|Location|usb/lp1|RemoteName| 
Jan  7 15:49:55 server esmith::event[5113]: Processing event: printer-create hp 
Jan  7 15:49:55 server esmith::event[5113]: Running event handler: /etc/e-smith/events/actions/generic_template_expand 
Jan  7 15:49:55 server esmith::event[5113]: expanding /etc/printcap  
Jan  7 15:49:55 server esmith::event[5113]: expanding /etc/atalk/papd.conf  
Jan  7 15:49:56 server esmith::event[5113]: generic_template_expand=action|Event|printer-create|Action|generic_template_expand|Start|1294422595 653685|End|1294422596 6541|Elapsed|0.352856 
Jan  7 15:49:56 server esmith::event[5113]: Running event handler: /etc/e-smith/events/printer-create/S15printer-create 
Jan  7 15:49:56 server esmith::event[5113]: S15printer-create=action|Event|printer-create|Action|S15printer-create|Start|1294422596 7000|End|1294422596 186542|Elapsed|0.179542 
Jan  7 15:49:56 server esmith::event[5113]: Running event handler: /etc/e-smith/events/actions/adjust-services 
Jan  7 15:49:56 server esmith::event[5113]: adjusting supervised smbd (sigterm)  
Jan  7 15:49:56 server esmith::event[5113]: adjusting supervised smbd (up)  
Jan  7 15:49:56 server esmith::event[5113]: adjusting supervised lpd (sigterm)  
Jan  7 15:49:56 server esmith::event[5113]: adjusting supervised lpd (up)  
Jan  7 15:49:56 server esmith::event[5113]: adjust-services=action|Event|printer-create|Action|adjust-services|Start|1294422596 187035|End|1294422596 380585|Elapsed|0.19355 
Jan  7 15:49:56 server esmith::event[5113]: Running event handler: /etc/e-smith/events/printer-create/S90atalk-restart 
Jan  7 15:49:56 server esmith::event[5113]: Shutting down AppleTalk services:   
Jan  7 15:49:56 server atalk: papd shutdown failed
Jan  7 15:49:56 server esmith::event[5113]:   Stopping papd:[FAILED]  
Jan  7 15:49:56 server nbpunrgstr: Can't unregister server:Workstation@*
Jan  7 15:49:56 server esmith::event[5113]:   Unregistering server:Workstation: Can't unregister server:Workstation@*  
Jan  7 15:49:56 server atalk:   Unregistering server:Workstation: failed
Jan  7 15:49:56 server esmith::event[5113]: [FAILED]  
Jan  7 15:49:56 server nbpunrgstr: Can't unregister server:netatalk@*
Jan  7 15:49:56 server esmith::event[5113]:   Unregistering server:netatalk: Can't unregister server:netatalk@*  
Jan  7 15:49:56 server atalk:   Unregistering server:netatalk: failed
Jan  7 15:49:56 server esmith::event[5113]: [FAILED]  
Jan  7 15:49:56 server smbd[5117]: [2011/01/07 15:49:56, 0] smbd/server.c:main(990) 
Jan  7 15:49:56 server smbd[5117]:   standard input is not a socket, assuming -D option 
Jan  7 15:49:56 server atalk: atalkd shutdown failed
Jan  7 15:49:56 server esmith::event[5113]:   Stopping atalk:[FAILED] 
Jan  7 15:49:56 server atalk: afpd shutdown failed
Jan  7 15:49:57 server esmith::event[5113]:   Stopping afpd:[FAILED]  
Jan  7 15:49:57 server atalk: cnid_metad shutdown failed
Jan  7 15:49:57 server esmith::event[5113]:   Stopping cnid_metad:[FAILED]  
Jan  7 15:49:57 server esmith::event[5113]:   
Jan  7 15:49:57 server esmith::event[5113]: serviceControl: Couldn't system(/etc/rc.d/rc7.d/S91atalk, stop):   
Jan  7 15:49:57 server esmith::event[5113]: S90atalk-restart=action|Event|printer-create|Action|S90atalk-restart|Start|1294422596 381002|End|1294422597 44031|Elapsed|0.663029 
Jan  7 15:50:49 server smbd[5224]: [2011/01/07 15:50:49, 0] smbd/nttrans.c:call_nt_transact_ioctl(2463) 
Jan  7 15:50:49 server smbd[5224]:   call_nt_transact_ioctl(0x900eb): Currently not implemented. 
Jan  7 15:51:07 pc-00015  Jan  7 12:51:5 192.168.100.15 SipEngine [A408] Sending response to out of dialog OPTIONS.
Jan  7 15:51:55 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5254]: /home/e-smith/db/accounts: OLD hp=printer|Address||Description|HP Laser|Location|usb/lp1|RemoteName| 
Jan  7 15:51:55 server /etc/e-smith/web/panels/manager/cgi-bin/printers[5254]: /home/e-smith/db/accounts: NEW hp=printer-deleted|Address||Description|HP Laser|Location|usb/lp1|RemoteName| 
Jan  7 15:51:55 server esmith::event[5255]: Processing event: printer-delete hp 
Jan  7 15:51:55 server esmith::event[5255]: Running event handler: /etc/e-smith/events/actions/generic_template_expand 
Jan  7 15:51:55 server esmith::event[5255]: expanding /etc/printcap  
Jan  7 15:51:55 server esmith::event[5255]: expanding /etc/atalk/papd.conf  
Jan  7 15:51:56 server esmith::event[5255]: generic_template_expand=action|Event|printer-delete|Action|generic_template_expand|Start|1294422715 657123|End|1294422716 9608|Elapsed|0.352485 
Jan  7 15:51:56 server esmith::event[5255]: Running event handler: /etc/e-smith/events/printer-delete/S15delete_printer_tdb 
Jan  7 15:51:56 server esmith::event[5255]: S15delete_printer_tdb=action|Event|printer-delete|Action|S15delete_printer_tdb|Start|1294422716 10028|End|1294422716 14066|Elapsed|0.004038 
Jan  7 15:51:56 server esmith::event[5255]: Running event handler: /etc/e-smith/events/printer-delete/S15printer-delete 
Jan  7 15:51:56 server esmith::event[5255]: S15printer-delete=action|Event|printer-delete|Action|S15printer-delete|Start|1294422716 14648|End|1294422716 159960|Elapsed|0.145312 
Jan  7 15:51:56 server esmith::event[5255]: Running event handler: /etc/e-smith/events/actions/adjust-services 
Jan  7 15:51:56 server esmith::event[5255]: adjusting supervised smbd (sigterm)  
Jan  7 15:51:56 server esmith::event[5255]: adjusting supervised smbd (up)  
Jan  7 15:51:56 server esmith::event[5255]: adjusting supervised lpd (sigterm)  
Jan  7 15:51:56 server esmith::event[5255]: adjusting supervised lpd (up)  
Jan  7 15:51:56 server esmith::event[5255]: adjust-services=action|Event|printer-delete|Action|adjust-services|Start|1294422716 160416|End|1294422716 364208|Elapsed|0.203792 
Jan  7 15:51:56 server esmith::event[5255]: Running event handler: /etc/e-smith/events/printer-delete/S90atalk-restart 
Jan  7 15:51:56 server esmith::event[5255]: Shutting down AppleTalk services:   
Jan  7 15:51:56 server smbd[5261]: [2011/01/07 15:51:56, 0] smbd/server.c:main(990) 
Jan  7 15:51:56 server smbd[5261]:   standard input is not a socket, assuming -D option 
Jan  7 15:51:56 server atalk: papd shutdown failed
Jan  7 15:51:56 server esmith::event[5255]:   Stopping papd:[FAILED] 
Jan  7 15:51:56 server nbpunrgstr: Can't unregister server:Workstation@*
Jan  7 15:51:56 server esmith::event[5255]:   Unregistering server:Workstation: Can't unregister server:Workstation@*  
Jan  7 15:51:56 server atalk:   Unregistering server:Workstation: failed
Jan  7 15:51:56 server esmith::event[5255]: [FAILED]  
Jan  7 15:51:56 server nbpunrgstr: Can't unregister server:netatalk@*
Jan  7 15:51:56 server esmith::event[5255]:   Unregistering server:netatalk: Can't unregister server:netatalk@*  
Jan  7 15:51:56 server atalk:   Unregistering server:netatalk: failed
Jan  7 15:51:56 server esmith::event[5255]: [FAILED]  
Jan  7 15:51:56 server atalk: atalkd shutdown failed
Jan  7 15:51:56 server esmith::event[5255]:   Stopping atalk:[FAILED]  
Jan  7 15:51:56 server atalk: afpd shutdown failed
Jan  7 15:51:56 server esmith::event[5255]:   Stopping afpd:[FAILED]
Jan  7 15:51:56 server atalk: cnid_metad shutdown failed
Jan  7 15:51:57 server esmith::event[5255]:   Stopping cnid_metad:[FAILED]
Edit: added code tags around the log snippet to improve thread readability