I was under the ussumption that the sks didn't help you program keys. That the key had to be already programmed from the dealer?
It depends on which car the 9.1 is in... Golf and jetta up to mid 2007 just need a TP23, or CAN chip, whereas a 2006-2010 Passat you need to have all 8 bits of the component security data written to the key before you can program it.