From
the PT FAQ forum:
The only files you need to backup are the database files. These files have the extension ".MDB". DO NOT BACKUP PTREGV2.MDB though. If you haven't created additional databases, the only files you'll have are PTRACK.MDB and HHDB.MDB. Additional databases usually have the names PTRACK2.MDB, PTRACK3.MDB unless you have renamed them.
If you want to move Poker Tracker to a different PC, just backup the database files then run the install program -
www.pokertracker.com/download.html - on the new PC. Copy the database files over to the new PC and overwrite the files loaded during the install. You will need to send me the new product ID (from the About window) so I can send you a new registration code.