The Dink Network

Check Contribute -> View Contributions. You should see your file there, along with its current status (pending/approved/rejected). If it's not there at all, that means the file didn't upload properly for some reason. I think the uploading process can be a bit iffy, since there isn't any kind of loading bar, nor, I think, even a failure message; you just click submit, and then wait for the page to finish loading. If your internet connection breaks up during this time, or the DN servers go down for a moment, that can easily lead to a corrupted file/no file uploaded at all.