I don't have a full answer (again)
Try the following command
# head /home/e-smith/accounts
After the normal header you should see a line like the following
Primary=ibay|CgiBin|enabled|Group|shared|Modifiable|no|Name|Primary i-bay|PasswordSet|no|Passwordable|no|PublicAccess|global|Removable|no|UserAccess|wr-admin-rd-group
You can see that (for me) the CgiBin is enabled which means that it supports dynamic content (eg cgi scripts).
I just tried on my 'almost fresh' 6.0.1 install and both CGI & PHP scripts are working. I don't think that you need to do anything.
-- If you already have dynamic content working in other ibays then ignore what follows--
I dropped a CGI script into
/home/e-smith/files/primary/cgi-bin
(I then had to 'chmod 4770 myscript')
It should then be working ...
http://testserver/cgi-bin/myscriptI put the classic test.php into,
/home/e-smith/files/primary/html
and checked ...
http://testserver/test.phpIan