For SINGLE TABLE Sit&Go tournaments, they will prompt you at the end of the tournament to see if you want them to send the hand histories for that tournament. MAKE SURE YOU ANSWER YES TO THIS PROMPT. Included in this email will be the summary of that tournament at the top of the message. Another feature is that they often times, but not always for whatever reason, will send you hands that were played even after busted out of the tournament. This gives you additional information about your opponents that you don't get from Paradise or Stars. However, for the multi-table tournaments at Party, there are no summaries available and you can't get them from customer support, at least not at the time version 2 was released. So you must manually enter the tournament information if you want to track your results using the File/Party and Affiliates Tournement Results - Manual Entry window.
The latest version of Poker Tracker is able to record the summary information (buy-in, fee, place of finish, etc) for the SINGLE TABLE SNG's at Party because this information is contained in the hand histories that are stored on your hard drive. You shouldn't need to get the emailed summary/hands any longer unless you want to record the payout and place of finish for every player in the tournament.