I get audio but no picture on playback

[wolfmandim]

Gentlemen I need HELP!
I have formatted my hard drive and straight away the first program I installed was bsplayer pro. I went to options>Preferences>File types>Associated extensions>Select>Select all. All Associated extensions were ticked. I exited the program and then started again to check my settings. They appeared as if I never did any actions before. Unticked! I installed Quicktime alternative and it does not show anywhere in preferences or in the filter manager. I am using Vista Ultimate in my PC.
Can you tell me what's going on? Why can't I customize the player settings? It looks as I formatted for nothing! Please HELP!