Ahh sorry I didn't understand the 32 64 bit thing. You will need Vista x64 to get all the files from. There is a folder in both Program Files and Program Files (x86) on the 64 bit for both Vista and Seven.
I'm not fond of Live mail either. The only way I know of is if you know someone you can get the files from. Also I was never able to get WM as the default mail handler when I tried this. That means mailto links didn't work. I'm now using Outlook which costs, but there are others such as Thunderbird that may suit you. Thunderbird - It?s All Yours