Which one do you run any why? I downloaded and installed pack 15 and use all the defaults.
I like to play windowed because all the stats and HUD items look normal. When I switch to fullscreen the graphics are better but then I get question marks for the weapons and things just look weird on the HUD. So, I keep it in windowed mode.
In theory you could just convert the rpg weapon icons used for weapons into the hudbot equivalents and register them with the weapon hud...with that said I use windowed just because it is easier to switch between multiple programs.