The commmand looks fine to me. Maybe it's because you're sending SetForegroundWin five times in each hotkey, although I'm not sure why Windows would care. That happens because it's included in SendLabel, and SendLabel happens five times since there are five labels. The Sendlabel statement doesn't accomplish anything here so you can remove it.

Why did you include the <Key> statement in the hotkeys?

How about rewriting the hotkeys like this:

Code:
<Hotkey F8>
   <ResizeAndPosition WoW1 WoW2 WoW3 WoW4 WoW5>
   <TargetWin WoW1>
   <SetForegroundWin>