Are you using adobe photoshop? What I usually do is go to file and new, and click to make the background transparent there. Then cut out the pic and drag it onto that one. To save it as transparent go to file, and then export it as a gif. I'm not actually looking in the program right now, so I'm not sure if that's exactly what it says.....but something to that effect.....let me know if you get it to work.