I know that Photoshop is a good image editor but I can't afford to buy it. Is there a good freeware image editor such as GIMP?
Do you mean other then GIMP? How to Make GIMP Work More Like Photoshop http://lifehacker.com/how-to-make-the-gimp-work-more-like-photoshop-1551318983 GIMP for Windows http://www.softpedia.com/get/Multimedia/Graphic/Graphic-Editors/GIMP.shtml