I revised how its done, and I wanted to light up the thread so you saw it. :P You can just use that line as your label's text...no messy onenter/leaves necessary. Due to what I consider a tiny bug*, you will have to include xTaskbarHoverTask with your vars (no need to set it to anything...you can just leave it empty).

*xTaskbar doesn't seem to create that var properly on startup. I believe it only gets created the first time the mouse enters it. If that is the problem, it should be changed to create atleast an empty var when the module initializes. The work-around is pretty simple, though, so maybe it doesn't need fixing...