I often do presentations about blogging and decided to setup mu wordpress on BlogCram.com. My intentions are to allow the people I present the ability to have a subdomain off of BlogCram in order to play with wordpress before hosting it themselves.

Here is the problem I am running into right now: When someone signs up on BlogCram they are given a username and password to be a contributor to the main domain. This is the last thing I want. I am trying to figure out how to setup them up with a subdomain to blog on.

I've gone through the admin panel with a fine comb but no success. I do not doubt that this is a quick fix, but I cannot figure it out. Any insight would be appreciative!