I tend to agree that all files/settings are correct but it might not be passing the right directory/path info through php. Doublechecked all files/etc and everything look a.o.k.

What's the easiest way to debug this? i.e. turn on some logging to see what the server is trying to pass to that common.php or whatever when it gets the module does not exist error?

FIXED IT! Turned out to be a problem with the virtual path in the mainfile.php...

Found out by deleting everything and starting from scratch. Originally I had installed it with "http://www.domainname.com/" as the virtual path, which caused the problem. Reinstalled and used the defaults that XOOPS installer put in: "http://domainname.com/domainname.com_non_ssl/" for the virtual path. Physical path remained the came - c:\inetpub\vhosts\domainname.com......

Guess I should have took the XOOPS defaults at the beginning

It has something to do with the way my virtual hosting is set up on the server, and I was definitely using the wrong virtual path which caused the modules stuff to not be found, hence the conclusions above. But everything is working now! Sweet! Finally get to play with XOOPS and move my phpnuke stuff over Thanks for your help!!!!!

Nice one gman, thought it had to be a pathing issue of some kind .