To prevent people from cheating by editing their screenshots, we are now using Rankosaurus as the submission system for Dig Your Own Grave high scores. You'll need to go to the Rankosaurus site, create an account, and install the Rankosaurus Screen Grabber. After that, submitting a screenshot is easy.

You can find more information about Rankosaurus in this thread. It's also a good place to ask any questions you have.

NOTE: Currently, Rankosaurus only supports Internet Explorer and Firefox browsers on the PC platform.