I am looking for a way to build multiple xoops web sites on a single server each with their own domain but all xoops sites drawing their modules from a central location of modules, but each domain using it’s own sql data base. Where in the xoops mainfile or other php pages controls where the available modules are drawn from. The multisite module I already checked out and I can’t get it to work. But any suggestions on where to look on how to change where the files for the modules pulls from would be helpful

I was having the same problem and so far I just needed to make sure the database prefix was different on each site. So far that is working, but I'm still working on it. You probably figured it out by now since this is an old post.