I'm also having the same problems but I can't see where to get the third account... I have a talk account (evidently as I'm writing here). I have a garage account... I can't see where to register for the other one - I'm trying to brainstorm but when I click to register from a brainstorm page the resultant login account doesn't actually work there. I'd appreciate some clarification...

...perhaps someone could post three links in response which point directly to each of the registration pages for the three different accounts and make this a sticky?

Cheers