Ubuntu Geek posted a guide about installing Gimp 2.6.11 in Ubuntu 10.10/10.04 using PPA
GIMP is the GNU Image Manipulation Program. It is a freely distributed piece of software suitable for such tasks as photo retouching, image composition and image authoring. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, a image format converter, etc.Install gimp 2.6.11 in Ubuntu 10.10/10.04 using PPA