Ok, so I've got Vista and XP on a dualboot configuration on this computer. I plan to use XP for gaming. I have an external hard drive that I install all my games on; From Vista, I installed the Sims 2. I then switched over to XP to add the files to my start menu, place the Sims 2 registry keys in, etc, so I can run it on either OS. Now that I have Sims 2 installed, Sims 2 ran fine in Vista. Copied over the shortcuts and registry entries, and what do you know, I can't see the any of the Sims 2 root folders (The folders the the files are installed in) in XP. It's like it doesn't exist or something, but I CAN view it in Vista. I tried changing the security settings in Vista to give full control to Everyone, but that didn't work.
My configuration:
Windows XP Home Edition & Windows Vista Ultimate
1x500GB External Westell Seagate, 1x500GB SATA HDs Internal
2GB RAM
Intel Core Duo 2.1ghz
Nvidia 7800 Geforce.
So, how can I make it so that I can view the folders in XP?

Thanks in advance.
EDIT:
I am so sorry for disturbing you guys, I am a complete and total idiot. For some reason, my drive letters were changed during reboot, and my Ext HD's drive letter was switched with my flashdrive's drive letter, and I accidently confused them. The folder layout is very similar between the two, so I had never noticed.

Please ignore this thread.