Please help me with a boxes and background image issue?

[jan_mull]

I have been trying very hard to change the right column infoboxes background image to be different from the left column's, but with only partial success.

First I tried the advice in the online OSCdox guide that discusses how you should replace some pieces of code in three different files. Well, I would have, but the information.php file that the guide refers to, looks completely different and there was no corresponding code that I could replace.

So I then went into the specific box's file, in my case into the BestSeller.php file and replaced the InfoBoxContents class with a new class, but for some reason there is still a small strip between the box's borders and the contents that still reflects the other background image defined by the Body class for the entire page.

Could you PLEASE tell me how I can neatly change the right column's infoboxes' background from the left's?

Thanks a MILLION!
Jan