Forum:DLC problems on PS3, Please help me!

Hey guys, I need some help.

I have just downloaded and installed all 4 of the DLC for Borderlands on my PS3 and I can't access them.

'''I've had a look on the internet about how to play them and everyone says go to the fast travel and there will be new locations for each of the DLC. Unfortunately for me there aren't any new locations on my fast travel, does anyone know what I have to do?''' I have 3 saves, all of which I started with out the DLC installed on my PS3. Does this effect it in anyway?

Can someone tell me what I am doing wrong?

Any help will be greatly appreciated :)

Some info about my saves just incase they effect how to play the DLC.

- A Siren class which I have completed the game with and have decided to do a second playthrough. I'm about a 1/4 the way through and is level 46.

- A Hunter class which I've just started which is level 5.

- A Soldier class which I've also just started which is level 9.