The software came with my cable so not to sure where you would get the software from on its own. Maybe the pne you have got/downloaded is for an older version like you say. On mine there is definatly an option for the the E90 and E92/E93 so you need the updated version.
Try typing bmw inpa cable into ebay and you will se a few come up, as said above I went for up 2010 so it covered most of the models.
What year is your car?
Looking by your status you are located across the pond, am I right?
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