I screwed up something trying to be smart

. I had installed the "yourbox" module by imaginetech (very nice module btw) properly and used it. However I needed another box. So I thought of renaming it so that I dont get confused with which box is for what as in the admin it just says yourbox. I just renamed your "yourbox.php" files to "yourbox_credit_cards.php" and pasted it in all the folders mentioned in the instructions. I wanted to show the pics of all the credit cards the shop accepts. When I tried to install my newly created mod...it gave ann error. I tried to open the front end and now I cannot load my site at all. It gives an error...below..
Error: Could not load controller module/yourbox_credit_cards!
Any idea what it could be and how to solve it? I have deleted all the yourbox_credit_cards.php files as they didnt work.
Thanks a million in advance.
Vimal.