Okay, I'm an idiot...
I was having problems with GPO Studio and Finale 2002. (Playback would stop and an error message would come up stating 'midi device not found'.) So, I decided to uninstall GPO Studio (I had both versions [1.2 and 2.0] and I removced them all for a fresh install.) After re-booting my computer, I tried to install GPO 2.0 and found I lost my registration and it said to run the registration program. Which I could not find since I uninstalled GPO (aaargh).
So, I decided to re-install from my original disks. I put in Disk 1 and got to the point of putting the serial number in. That went fine! I didn't uninstall my library, so I unchecked the install for the sample library part of the installation. I checked the directories and finally got to the install screen. There it abruptly stopped and told me 'it couldn't find UNWISE' and to check to see if my disk is full and that I have access to the destination directory. "Access is denied"!
What's wrong and how can I correct it?