I was cracked for like 8 months, now I bought the game.
When I was cracked I've been looking for how to get a skin on minecraft when you are cracked.
Most of them said: Impossible, or change the char.png file.
Well it it possible and the char.png isn't a real skin.
How to do it:
1: Close your cracked minecraft client.
2: Go to this site: [Only registered and activated users can see links. ]
3: Either search for a username or choose a skin from the list on the bottom.
4: Click on the skin you want.
5: Open your minecraft cracked client.
6: Enter the username from the skin.
7: Login on a singleplayer or multiplayer.
8: You got a skin
This will work on like 9/10 of the multiplayer servers. (bukkit)