I see that you have a problem with the PS3-version!
Here's your answer.
The Orange Box on PS3 sold really bad for such a great game! As such, it has a total of aprox 150-200k owners on that system (90k on Vgchartz, but without EU-data). 150-200k owners means that there are few people online, especially when the game has 5 great games in it, which means people are playing Half Life 2 or Portal instead of Team Fortress 2. Add to that that everyone who likes online FPS has bought Call of Duty 4 and you have a maximum of 50-80 people online at a time. With occasionally not enough people online to make a game because there are not enough people online in your region (US, EU etc...)
So, if you want to play online games, buy Call of Duty 4... Nobody is online on Team Fortress 2 on the PS3, sadly! For it is a great game still!
THE NETHERLANDS
