Howdy Al,
It’s nice to meet you. I’d love to help you with that.
After looking at your test site I can see why you are having such difficulty styling that widget.The widget title is not wrapped in any HTML, not even a <p> tag or especially one that has a CSS class. This makes it extremely difficult to style, you actually have to style everything on the page to affect it.
When you or your theme author created that widget area, I think they accidentally specified a couple of options you don’t want. You likely have set this:
'before_title' => '',
'after_title' => '',
What that does is remove the opening and closing tags for the titles in tht widget area, without getting extra tricky. If you remove those lines it will use the defaults instead, which I believe is <h2 class=widget-title>. You will likely see the widget automatically inherit the same styles as the rest of your theme once it is set back to default. You can see more information here: http://codex.wordpress.org/Widgetizing_Themes
Was that the problem? Does that all make sense and help you to fix it?
Cheers!
– Brook