vista beta2 is available now for free

to download the vista beta2, click url http://download.windowsvista.com/preview/beta2/en/x86/download.htm .
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A Windows Vista Capable PC includes at least:
A modern processor (at least 800MHz1).
512 MB of system memory.
A graphics processor that is DirectX 9 capable.A Windows Vista Capable

A Windows Vista Premium Ready PC includes at least:
1 GHz 32-bit (x86) or 64-bit (x64) processor1.
1 GB of system memory.
A graphics processor that runs Windows Aero2. 128 MB of graphics memory.
40 GB of hard drive capacity with 15 GB free space.
DVD-ROM Drive3.
Audio output capability.
Internet access capability.

i need another memory card, the system memory must over 1g.