Need help with portal page

[cranky]

I'm certain the answer to this question is simple, but I haven't had any luck and I'm under a deadline.

My client has a url they want to use for marketing purposes, for example http://www.foo.com/foo. However, actual working pages on the site have to reside in the http://www.foo.com/active directory, so putting the page in the /foo directory screws up the tracking on the site.

What I would like to do is put something in /foo that will automatically forward the visitor to the proper index page in /active, however I can't remember how to do it.

I don't want them to have to take any action, and would like the portal page located in /foo to be transparent.

Help please?
Thanks.

[cranky]

The benefit of asking a question is I always end up figuring it out.

Thanks anyway!