My PS2 doesn't have an ethernet jack on it. How can I connect it to the internet so I can play TF2 (I've heard TF2 will run on the PS2)?
If your PlayStation 2 does not have an Ethernet port as it does not have any inbuilt networking capabilities.
To network, you need a PlayStation 2 network adapter.
Your actual objective faces two much greater difficulties:
- Team Fortress 2 was a PlayStation 3 title. It is not supported, on PlayStation 2.
- Until recently, the only PlayStation 2 game that still had an online server was Final Fantasy. However, in March, these servers were also shutdown. There is literally no game server to connect to, even if you obtain an adapter and supported online game.