What I mean is that my
WP install is version 3.0, which now includes the multi user/site feature. I purchased the Ultimate edition of Classipress so that it would be compatible with this type of setup. I'm assuming that since this is in the presale section, that you are doing your research. And I would recommend you look at the Ultimate CP version if you are wanting to do what you mentioned. Because with the
WP 3 version you can enable or active the "Network" features. After you install
WP you follow a simple few steps and magically you have "Super Admin" in your dashboard. This allows you to add new sites without installing
WP over and over again. You can then switch between the sites and the Classipress Dashboard will be there in them all.
With a few plugins, you can control a lot of permissions and user registration.
As for looking at a link. I don't have that online right now. I'm developing local on my MAMP server.