VB5 API - Moving Users to Different UserGorup

[cryptosaurus]

I have a situation where I have an existing website with a community of users. We are integrating a forum and need to have those existing users brought over.

The forum is private, and therefore, I've required that any new registrations be moderated.

I've already gone about being able to provide a registration mechanism using the API that will create their account but it ends up putting them in the moderated users group.

Can anyone point me in the right direction as to how I would be able to move these users from the Awaiting Moderation group to the Registered Users group via API or programatically?

If you feel there's a better approach to accomplish what I'm trying to do, I'm open to that as well.

I should note I'm using VB5 Cloud. I am a .net developer so just getting this far using PHP has already been a struggle