Thanks Till, i have been playing with symlinks, and it seems to work "kind of".
I have 3 clients, and the site data is found in the clientx/webx/web folders. I added a symlink from the squirrelmail webmail folder to the web folders, and for client1 it worked just fine. For the client2 and 3 it would not load, and gave a "forbidden" error page.
I checked the permissions on each symlink, and they were all identical. Still a little confused, but think I am making progress.
Again, any help would be greatly appreciated.