This is a little mod that took me so long to work out (for what it is) that I couldn't not contribute it. I hope it's useful to some and at least unique.
This mod will allow you to display the name of the current category or subcategory in the main page heading, where a clean osC2.2MS would say "Let's see what we have here", in the same manner as the last category listed in the breadcrumb trail.
This would be most useful in instances where you have altered the appearance of osCommerce substantially (perhaps with Simple Template System) and require something a little more obvious on your page than the breadcrumbs or categories box as an indicator of where you are in the catalog.
Email me if anything screws up! :)