Make another logo on a transparent image. It will look better.
Lol. I followed that tutorials to make the button not to long ago.Ill try.And a tip:Next time when you make an image, be sure to delete the Backround layer (The one that you didnt draw anything on) this will make your picture transparent.
http://ploader.net/files/95b37602471465c755f7f1d75d899dc1.pngenjoy