Combining Sideboxes?

[vito]

The only way that I am aware of to do this easily would be to edit a copy of the category sidebox code adding the code from the manufacturers sidebox to it

Thanks, I think that makes sense. I've been trying to do that for the past hour but can't seem to get it right. Am I correct in assuming that I need to take some code from includes/modules/sideboxes/manufacturers.php and adding it to includes/modules/sideboxes/categories.php (of course, in my CUSTOM folder), or am I hacking the wrong file?

Vito