Old beta keys from the last testing dont appear to be usable. I tried to get a new one and it said it was unavailable... I guess I will have to wait and see.
If you have a VIP key from us, you don't need another one. You'll have to sign the NDA again for the next beta, though. The patcher has been prompting you to do so if you need to.
As far as getting a key, we still have keys available here: ***CLICK ME FOR A KEY***
Note: If you have already gotten one from ZAM, it will not give you another.