WordPress MU

All,

This actually pertains to WP3b1, but since it's basically the same as WPMU, I thought I might ask here.

I'm curious if there is a way to use mod_rewrite and mod_proxy in Apache 2.2 to proxy a WP 3.0b1 Multisite site from domain.com/sites/wpsitename to domain.com/wpsitename

Currently, if I just do a simple:
RewriteRule ^test3(.*)$ /sites/test3$1 [PT]

It shows a page, but no content (says "Not Found", and I get a search bar). But I see the CSS, graphics, etc. Though links all want to point to /sites/pagename.

There must be someway to do this... and looking for WPMU info hasn't turned up much that seems to indicate this is possible.

Thanks very much!

Why not just move the folder? Or create a symlink?

And you'll need to go change all the links in the database.