Can you post the Rabbit code you're using that doesn't work? Can you validate the PC code you're using for the test.
The sample AES_Encryption/AES_KAT.c performs "known answer tests" to validate the AES-128, AES-192 and AES-256 code. Note that the test parameters are hex strings that the test code converts to arrays of bytes.
Make sure you have the latest version of the compiler (10.72D).