[Python-3000] Install on Vista / AMD64 AthlonX2 platform

[Mark Hammond]

> I have been unable to install 3.0a5 on a Vista / AMD64 platform.
> I downloaded the amd64 3.0a5 installer and I have tried various ideas
> but always find that Vista complains that 'Installation package could
> not be opened'.
> I would be grateful for instruction from anyone who has done this.

I just tested the 64bit 3.0a5 installer on Vista64 and it worked perfectly.
You might want to verify your download worked OK by comparing the md5sum of
your file with what is on the download page.

Cheers,

Mark