Question about wireless transfer and deleting files.

Okay, so I downloaded a player called AVplayerHD and I used it's wireless transfer feature to send a movie to my iPad 2 so I could watch it. The movie transferred perfectly and played wonderfully, but now I'd like to delete the movie from my iPad because it's taking up almost 3GB of space but I can't seem to find it. I've tried looking for it in my iFile app and it doesn't appear to be there and I tried the search feature on the iPad to find it and it's a no-go, anyone know how to delete it? Do I have to go through the AVplayerHD app itself to delete the file?

Any help would be greatly appreciated.