Markbux - how to upload proof

i am not a member in that site but generally you can upload by upload in some pic sharing hosting websites like photobucket or some other sites...upload your proof and then copy that pic link and post it in your markbux so that others can view your payment proof...:)

I am not a member of that site. However, I may be able to help you out with your concern. I believe they are asking you to upload it on their forum, right? The best way to do it is upload first your payment proof on sites like imageshack. Then after that copy the link provided by the site. Usually you can copy/paste the whole formatted version direct to the forum site you're going to submit it to. Or you can simply copy the URL of the image, then, create an html tag called 'img src'.