First, go to your paypal or take a picture of your check/giftcard. If you want, crop out your image (the start menu, etc) using paint. Use the selectors at the edge of the file in paint. Then go to imageshack.us and click browse, then find your picture and click submit. Then select the url under "Thumbnail for forums (1)" copy that, and make a new topic. Then just paste it into the post.