a drum question

Do anybody of you know if a program exists, where you can plugg from each song just the drum parts, so that you can play with the guitar each song you like together with the drums.

Get on Kazaa or something along those lines and do a hunt for backing tracks. Those are really fun to play over and you can find some good ones. If you can't find any in mp3 format, there are a lot of websites out there with backing tracks in midi format.