I would create a skin but i did´t know how, and which program i have to use...

sorry for my bad english i am a german with the Note E in English :)

I used "The Cyanide Shop" for my skin, but in order to get things to work right you have to tweak the skin in a bitmap program by hand in the end.

I found it gave me a good base to work with though.

Nesser

Use Photoshop or Paintshop pro.

If you use ONLY a bitmap editor, you can make quality skins. Go here:

http://www.winamp.com/nsdn/winamp2x/dev/skins/

For beginners I suggest...

go to http://www.jasc.com and download Paint shop pro free demo.
then you go to http://astalavista.box.sk and get yourself a patch so the PSP demo isn't a demo anymore. then...go skin!

You can also get a free graphics program called Gimp. I haven't tried it yet, but I've heard it's good :)