Calorie Tracker by LiveStrong "Purchase Not Found"

I paid for the app. Now I'm getting a "Purchase Not Found." In fact, I think I paid for the app like three times, which has the potential to turn into a headache to work out.

What does the "Purchase Not Found" message mean in the "my world" section of the App Store?

There is no other way to download the app, apparently. The Web site just directs you to the App Store.

Help!

Oh, and I forgot to mention that an error message also pops up that reads "System error. Please try again later. (Error Id: 504)"

Any ideas on what the **** is up?

... also livestrong's "contact us form doesn't work. Found out after typing a long email...

do you think lance knows about this?