Not sure if you mean PID or pb guid
Your pid is 107982131
EA ::Battlefield 2:: Player Details
For your PB Guid try the following, it's been a while since I've done this, So if it doesn't work let me know
Connect to any PunkBuster-enabled server (recognisable by the PunkBuster symbol).
Open your console (by default the ` key - otherwise check your control settings).
Type pb_myguid into the console. You can then either take a screenshot or you can directly write down the 32-character GUID.