[Ryan Ashbrook]

The colors of the ads change according to your style that is in use right now.

If you have a White skin with Red text, the ads will have White BG's with Red text, if you have black/blue, then the ads will be black/blue.

If you want to change the colors, simply go to Admin CP > Styles & Templates > Expand your Style > Ad Location Templates then pick the ad you want to edit. The AdSense code will be there.

When you switch between Ad Types (Low or High) vBulletin will automatically update the Master template set, so your Ad Templates will be marked as unchanged (in White instead of Yellow/Red). Simply ignore that and open the ad template you wish to edit and modify accordingly.