Just wanted to let you know that when installing Xoops (2.0.15 in this case) the install script checks its own location. When it does that it finds the physical path with the dataglob.
edit Info on dataglobs: http://wiki.dreamhost.com/index.php/Dataglobs
I read that you should never use the dataglob in your path so i changed it and the install didn't work. Ok... Uploaded the original unchanged mainfile.php and did the installation again. This time i left the path as it was, glob and all. The installation went fine.
After the installation was done i downloaded mainfile.php and changed the path in the file to the correct one, without dataglob, and uploaded it again. Now my site works fine, and with the correct path.
Just thought i put this in here if someone else have similar problems.