dwalton
Not seeing a server manager panel does not mean the tmda rpm will not install/run on sme8.
Most/many el4 rpms run on el5 systems OK.
You would have to configure settings using command line & tweak appropriate conf files & so on.
Typically a publicly available package (eg tmda) is utilised by Dungog, who then write a smeserver-tmda rpm that integrates tmda with sme server, & also a tmda-dungog rpm that adds a server manager panel etc. The first two are free but you have to pay to get the tmda-dungog rpm.
If Dungog are no longer supporting it, then it is most likely that no one else will be writing code that adds a server manager panel.
It could also be that tmda is no longer compatible or no longer required in sme8, as there are better ways of doing things in sme8 that tmda used to do in sme7 ???
The pkg notes for tmda-cgi (from 2006) say it is software to reduce spam in mail, and sme 8 has many features that do that very well.
I think you need to install both tmda & tmda-cgi rpms, after looking in my archives.
You really should ask what the status is via
http://www.dungog.net/wiki/Contact