Hello out there!

Since nearly 2 weeks I'am trying to understand, how to change the classes sectiontableheader and sectiontablentry. So, I read many discussions within many forums, without beeing able to find a propper solution.I tried nearly everthing including renaming the classes in all php files and adding modifcations to the cb and joomla css files...without success.I'll be really greatfull for any helpful idea.

Best regards
Burkhard