74394 Blogging gateway script

I have some blogging software [[login to view URL]] and I would like a script made that allows people to signup for a blog. I like this particular blogging software because it is free and very clean in appearance. I don't need a lot of “fancy” additions to the blog and they will not be accessible via rss. This script can use php and should automatically create the users blog after they register and pay via [login to view URL] account and confirm through email that they provided that they do indeed want a blog. Each individual blog needs to be on the site whether it is a subdomain or folder after tld. For example, the address might be [login to view URL] or [login to view URL] My budget is not that great, which is why I am looking at this particular software. I am hoping that someone out there already has something similar to what I am looking for as there are a multitude of sites where people can automatically sign up for a blog. Please use my name “Darren” in your bid or your bid will be in vain. I don't need hosting, design, or anything like that. I am open to suggestions if you have something already made and thus would lower the cost.