Did you try a "Code Search" with the remote ?
I know it's painful to do, but you may get lucky - the only problem would be knowing which button to press during the sequence, since "Power" may not be appropriate for your device - maybe "Play" ?
I did find this thread at Remote Central which, although it's talking about Trutech TVs, might give you a clue - it's just about possible (although probably unlikely) that they used the same codes for this device as some of the ideas in that thread:
RC Thread... It's probably a red herring, and the codes are totally different - but it's all I could find about Trutech remote codes...
Failing all that, you could use the old trick of sneaking a learning remote into a retailer selling these frames, and learn the codes from a display unit.
(Your friendly retailer may even happily let you do this - couldn't hurt to ask)
Sorry if all that wasn't the help you were looking for - it's all I could find, and your question had gone unanswered for a couple of days...
