Do your friends talk bad about your ex after a break up?

Yep - drink some beer and talk 'bout why it's better she's gone. Don't reckon we say much about other ladies in general, though I'd bring up a particular one if right.

None of my Ex's deserve to be talked bad about except one and I have not let anyone talk bad about them. They held a special place in my heart at one point in my life and in a smaller way always will.

As for the One ex that deserves to be talked bad about (my most resent Ex) I try not to talk bad about her and try not to let others but she is such a slimy, up to no good, Game Playing H... that some times I can't help myself.

I have never talked bad about any of my ex's and didn't let any of my friends talk bad about them. I guess it depends on how much you cared about them at the time you were with them and still do for who they are regarless of breaking up. Once it ends with a heart break, all you remember are bad experiences anyway.
As for getting over part, the only way to accomplish is to go out and meet new people, and that's what your friends are trying to help you do. You decide whether you want to do it or not.