At first, sorry for my bad/terrible english, it's not my native language

Okay. I've wanted to simply play HnH. First problem I had was the terrible loading bar that was never ending by unknown reason, and writing some message I don't remember. Bah, downloaded Ender's client. "Connection refused". Downloaded CCLauncher. Had terrible problems with it, but looked at the Internet for solution, and did something, and it worked.
Partially. After logging in - loading screen and then black screen. Pure black of nullness. And it was staying until I've terminated it with Task menager, because close button didn't worked. Tried multiple times, same. The only thing I see is cursor, that arrow, I can move it but nothing else appears.
I've downloaded another client. Too old. I've tried the default client downloaded from somewhere where's no that silly loading bar. Same thing as in CCLauncher, black screen of nullness staying for ages. NO, it's not the command prompt one. I don't know what to do. Blame you that you made it in Java. Darn.
Anyways, can anybody help? (I use Windows 7 btw)