You win the joy of knowing your work is good from the contests. No prizes, just for fun.
As for the whole 'printing' thing, just print a screenshot and use scissors to cut out your comic. Even though it's not really neccesary to print them out, seeing as how they're stored on the site and everyone can access them at any time.
To print your comics use the "print screen" button then paste into MSpaint. Use the dotted line feature to highlight the comic and drag it to the top left corner so that it fits snugly without all the stuff around the comic itself. Then select the little blue square in the bottom right corner of the page and drag it up to the bottom right corner of the actual comic.
That will resize it to just the comic. Once you've got that you can highlight all (ctrl-a) and copy and paste 2 or 3 into a new paint window to print them.
--- Dinosaurs had eggs bro, the chicken came way later.