> I am attempting to restore my Outlook backup via the Import function
> in Outlook 2007.
There's your first mistake. Importing is never the way to restore a backup.
You lose data.
> I exported my PST file to create a backup and then
> reformatted my computer as I needed to.
This is your second mistake. Exporting is not a good way to back up. You
lose data. Importing and exporting is to be used only when transferring
data between Outlook and some other application. It should never be used to
transfer data between Outlook instances.
> When it is restoring, I can see by the process indicator that it is
> restoring the TWO contact groups I had set up. One for my personal
> contacts and one for my business contacts.
There's no such thing in Outlook as a "contact group". Are you referring to
contact folders?
> However, when I go to Contacts, it only show one contact group listed
> - my personal contacts. I can't seem to find the other group of
[quoted text clipped - 4 lines]
> Any idea on how to find where this other group of contacts is
> hiding??? YIKES! I know it's there, I just can't find it!
Try using the Folder List view and see if it is in the list.
For future reference, perform your backups by copying your data, not by
exporting/importing.
http://www.howto-outlook.com/howto/backupandrestore.htm

Signature
Brian Tillman [MVP-Outlook]