The payrate is the following: You get 1$ each 1000 views of your images (It's a very high payrate) and you can choose between 4 kinds of imagehostings to host your images .The minimum balance required for payout is only 5 USD. If you don't want to receive money so frequently, you could accumulate more money before request.
After you request your earnings, your earnings will be sent to you via E-Gold, Liberty Reserve, ePassporte or PayPal.

There is no limit on the amount of pics you uploadbut the filesize should not be greater than 1.5 mb for a single image.