I've been trying to get this work for a while but apparently there are issues with the installer and Win7 x64 without doing some unnecessary registry edits.
I thought I'd pass this along to other community members before any pulls their hair out like I did. The standard quiet install commands work fine within XP but in Windows 7 x64, the installer will just hang when it's deployed. The error you'll get is 1619.
If anyone has a solution, I'm all ears.