Create member from aspx

[WWV]

I am currently programming an aspx website that uses custom membership and want to be able to add a member to our ipboard forums when they signup to the website automatically. Whilst I have looked at the dev area and it refers to ipsmember, I have recently put version 4 on the test server to start working with that. My .NET knowledge is quite good but my pho is very poor so if anyone knows how to do this in ipboard 4, any help is greatly appreciated.