Add Category/Tag/Date/etc... to Page Tops

I apologize if this has been answered elsewhere in advance - I did try to search my way through and came up empty.

I am trying to add a title to a multi-post page, like the Category name, or the Tag name, when someone clicks on a Category or a Tag.

I think I'm close - if I understand the theme correctly, the spot this *should* go in would be in the "Style and edit CENTER COLUMN" section, in the "Content ABOVE the LOOP" area.

The problem is I see no method of telling the theme I want that listed at the top.

I'm starting to think I need some sort of PHP code and pull in a variable from WordPress itself - however I don't know WordPress well enough to even know where to dig up that information.

I noticed that this information is *sort of* listed in the actual title of the page (at the top of the browser window) although things like Dates I'd like to format a little nicer.

Is there a method of doing this? Am I just missing a simple option somewhere?

Thank you very much for anyone who can help!