Need help changing header, wanna add my logo

[ButchB]

I have tried and tried and can't figure out how to change my header. All I wanna do is replace the image header "disturbed skin" and add my logo. Can somebody help me figure this out? My site is www.dragbikeforums.com I know it's probably simple but i'm new to this and trying to figure it all out. Thanks.

[Princeton]

1)__ you can replace the logo via Style Manager / Stylevars / Image Paths
2)__ if custom style, you may have to edit the header template
More Info: http://www.vbulletin.com/docs/html/stylemanager_add_template