Two different versions of Finder in OS X 10.8 after migrating from OS 10.3 Panther
The only way to fix this is to do a fresh erase and install to Mountain Lion and when you restore from the previous backup, do NOT transfer the settings.  FYI, if you made a "Time Machine" backup you had to be much newer than 10.3. 

If this is the case then the backup should be fully compatible.  Just do not put a check mark in the settings box.  I often recommend you also leave out "Other files &amp; folders", but that is your call.