Windows 7 and Acrobat 8 work great together.  Yes, 3 other programs still worked great with the scanner (2 used the Twain Driver and one used the WIA driver).  Not sure why I wanted to upgrade.  That being said, I did finally get it to work (or at least work well enough).  Here is what I did:  Restored my computer to a day before I installed Acrobat X when everyone was happy.  Manually uninstalled Acrobat 8 (rather than let Acrobat X do it).  Uninstalled the Xerox printer/scanner as a device.  Downloaded and reinstalled all printer  and scanner drivers.  Installed Acrobat X.  Tested it and then updated Acrobat X. 

The software is buggy in that it does not let me use the Create  ---> pdf from acanner ----> B and W Document (as an example) to scan.  However, I can go to Create ----> Custom Scan and then go through those screens to scan.  That is the only way it recognizes my WIA-Phaser driver (if I configure to designate a WIA driver, I get an error stating "Your scanner does not support presets". .  I am not sure why that menu that comes up when you execute Acrobat I tend to scan a lot of documents.  Once I go through the hassle of the scanning process, I have found no issues with the actual use of the software.  Seems to work great.  Since I got it working and need to use it to scan, myself and the software have come to a mutual irriation with each other.  I did talk to Adobe Technical Support on the 12th.  The technician said a "higher up" needed to contact me since this was more complicated.  Never heard from anyone.  Not impressive. 

I wish they had a button you could put on the menu or tool bar that goes directly to Custom Scan.  The menu that shows when you execute Acrobat does not even have a link for"Scan a Document".  I will have to read about automating tasks when I have some time.

Thanks for replying.  Curt