Comon...prety much what he is saying is if you want to make the artwork, then design it in adobe illustrator using the vectoring tools
a Vector is basically a mathmatical representation. So due to this it can be scaled to anysize and maintain perfect detail, as well as being redrawn without any loss in quality (perfect edges)
A bitmap aka raster file are an assortment of pixels of different colour, the more pixels the higher the quality (same principle as a digital camera, more = higher detail)
Admit it....
You googled that didn't you???
Wingy...