windows 7 beta x32 y x64 bits

Windows 7 Beta 32-bit version:32
http://download.microsoft.com/download/6/3/3/633118BD-6C3D-45A4-B985-F0FDFFE1B021/EN/7000.0.081212-1400_client_en-us_Ultimate-GB1CULFRE_EN_DVD.iso

Windows 7 Beta 64-bit version:64
http://download.microsoft.com/download/6/3/3/633118BD-6C3D-45A4-B985-F0FDFFE1B021/EN/7000.0.081212-1400_client_en-us_Ultimate-GB1CULXFRE_EN_DVD.ISO

este es el serial para activar el windows 7
serial:
4HJRK-X6Q28-HWRFY-WDYHJ-K8HDH