How can I get ProxyConnect to auto-create users?

I have an existing site setup with a bunch of users, and I've managed to get proxy connect all setup and working properly, but I don't want to force users to create vanilla forum accounts. I would like it so if ProxyConnect can access the SSO page I have created, it creates a user for them if it doesn't exist.

Any tips as to how I can do this? I'm not scared to write a bit of php
Thanks

Tim

if you wait till 2.0.4, you'll be able to set a simple configuration variable and this will happen on its own.