Why is my ps3 online not working?

in call of duty 4 on the ps3 (best game ever!!) can you play online with a dial up modem?

Where and how to register uefa euro 2008 code to play it online?I can play online but I dont get any points..please I need he...

can some one explain to me hows the ranking system on graw 2 advanced warfighter is it the same as it is on 360

Does rockband for ps2 work on ps3

Will the guitar hero 3 controller for ps3 work for rockband for ps3???

What does the dlc actually do

Not trting to start a fight but who has more people online? who has better online games?

I put in a ps2 game and the controller quit working. All it said was (Press PS Button)

Can you hook up any wirless bluetooth to it for the online? And if so how??

Are ps2 games working on ps3 ???