Holy sh*t. I have the same exact problems with VISTA. I have spent TWO entire days trying to download EU and failed. I'm ready to kill myself. I'm going to go try find more info elsewhere on the forums.

1) what does "dual boot" even mean? Do I have to buy a copy of XP and install it? Can I have both VISTA and XP at the same time?
2) where do I turn off the security features? I think I my have done this already.
3) where do you install RTW instead of in the program files?