The UBB doesn't care about what sort of aliasing is going on in the frontend, as long as the paths on disk lead to the right files. The URLs are just for linking to the scripts, images, and HTML files properly. (My own forums use the same directory-as-a-subdomain trick.)

If the Members directory is really where UltBB.setup says it is, then it SHOULD be readable...

If you can't figure it out, I would suggest opening a support ticket so we can take a look at your board. (Fixing this should be an easy issue, so don't be scared away by wording warning you about support units... <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" /> )

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