if you have some software like photoshop or paint shop pro theres an inbuilt capture function that would allow you to snapshot your comic directly into it, a way to cheat if you only have paint is to press the print screen button on your keyboard, then open paint go to edit and click paste as this will take a picture of your entire desktop (you'll have to cut it down to size yourself tho) the reason you cannot simply right click save picture is that it is not actually stored by brad as a picture, I believe he stores each bit of the comic as data(ie the url to which background, characters you use, your dialogue text etc) and then uses php to put all this data back together again to make ya comic.
