I need to understand the difference between Windowblinds and Curtains. Seems to do similar though somewhat differently. I've been trying to skin some of my programs but they won't skin with WindowBlinds. Most do with Curtains, however, it seems that I can use one or the other but not both. Curtains can skin most of my programs but don't seem to have the variety of skins that WindowBlinds has. Any guidance would be greatly appreciated.