An excellent little article I came across allowed me to replace the standard “kubrickheader.jpg” that comes with the WordPress default theme. So if you’ve wondered how to create rounded corners on your graphics - wonder no more!
http://paininthetech.com/creating_rounded_corners_with_gimpshop
Make sure to check the same site to figure out how to do the same thing in Photoshop using “paths”…it’s a useful technique for lots of graphics on the web.