if your using adobe, ( i hope you are, its the best ) go to file>save for web, and then a box will show up, you can change it to .gif ( for tags with transparent backrounds, and gifs as well ) or to .jpg ( for images such as pictures, splashes, tags without transparent backrounds, ect. ) so then click on after you selected the format you want it in, and then choose where you will save it. and then upload it, blah blah blah, i think you know the rest
