Need to add break but not sure which template?

[gossamerLL]

Hi,
I think I need to add a break in a template, but I'm not sure exactly which template to add it in.
See my problem here:
http://www.long2consulting.com/catal...ndex&cPath=3_1

Because I have an uneven number of catagories. I'd like the New Products For January - CSS Tableless Templates to start on a new line.

Which template do I add this in?

Thanks!
Linda