[Zope] Most efficient use of url rewriting and virtual host monster.

Hi List, I have a problem at the moment, that is mostly cosmetic, but quite annoying. I host a few domains on a single zope instance, in different folders. For example, domain xyz is mapped to: ip/folder/xyz. So far, I have not really grasped the virtual host root concept. I use the absolute_url method quite a lot in my scripts, and because of these two things, I end up with lots of urls that look like: http://ip/folder/xyz/folder/xyz/folder/xyz/folder/xyz/someScript I guess what I'm really looking for is a good explanation for virtual host root, as well some insight in how zope generates urls. I hope that was clear enough, it's been a while since I looked at these things. Thanks, Alec Munro