Trying to move app from rooted Nook <2.1 Android> to tablet running Android 3.1

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Titanium Backup copies the data <Angry Birds > but doesn't seem to "see" it on the SD card in the tablet.
Any words of wisdom that might help me migrate my Birds would be swell. I know the biggest issue is having the 2.1 operating system on the Nook.
Thanks in advance!