I don't know if it's backwards compatible to restore an 8.3 database into 8.2 but you can try it.
You can download the 8.2 install files here
http://wwwmaster.postgresql.org/downloa ... 2.12-1.zipWhen you install it, you will have to install it on port 5433 since 8.3 is using the default 5432
Then you will have to enter a new record on the Utilities > PostgreSQL Settings window in PT2 that defines the settings for 8.2.
Then you can use the Utilities > PostgreSQL Database Functions to make a backup of your 8.3 database.
Then use the same window to restore that .backup file into the 8.2 database. If this works, then you go to the File > Maintain Database Names window, click the Add button, enter a description, check the "Dflt" box and then in the last field choose "Select existing PostgreSQL database" from the list. On the window that opens, select the 8.2 database (it will have the same name as the 8.3 db but you will know which one it is based on the port #). Then click OK to save all changes and close and reopen PT and you'll be ready to use this new db. In PokerAce, you will have to tell it to use the 8.2 database instead of the 8.3 database...
http://www.pokertracker.com/products/PA ... gprefdbase