It works in Windows,Mac and Linux
You can get it here too!
http://www.plasticbugs.com/?page_id=294
It looks like Photoshop a lot put GIMPShop doesn't have the layer style window. You have to get the plug in and implement it in GIMPShop. Download the plugin here
http://registry.gimp.org/plugin?id=6988
GIMP cant use Photoshop brushes.Gladly you can use GIMPbrushes instead
http://browse.deviantart.com/resources/applications/gimpbrushes/?order=9&alltime=yes
You can get alot of The GIMP plugins (The GIMP plugins works only on GIMPShop) here
http://registry.gimp.org
GIMPShop is good for the people who can't afford Adobe Photoshop......
Get that?