beta key

Hello . I installed W7 64 bit to 3 PC's on my family and i forgot to active 2 of them . So is it possible to Get these 2 Beta Key's from Microsoft ?

I have a problem w/win7 and I think I might find the solution here. 1. I love this new os. Can't wait to see beta. 2. Network problem - can't see my other computer, running winxp, even though everything is set identically as on Vista I run as a 2nd OS. The computers are set to be in the same...