Thanks for the suggestion monk, but still a little stuck. Maybe if I re-ask what I'm trying to do, someone else will have a suggestions. (Ultimately, maybe we should make a wiki or info page on how to modify the default theme, call functions, what variables are, etc...)
In qa-theme.php I've modified the page_title function so that when the template == question, the "section header" of the page says "Category Question" above the actual question that was asked. I would like to substitute the word Category with the actual Category where the question was asked in.
I'm new, but quickly learning and adapting to PHP. The page_title function only calls $title, so I'm wondering how do I capture/call the category the visitor is currently looking at?