The combo for the safe is
[spoiler] are you really sure you want to know
really really sure
this is your last chance to turn back
No the safe combo is
You have to get the keys from the old lady's table, go outside remove the carrot from the exhaust and then use the keys to move the car, go and examine the mud, go back to your office and examine your boots you will find the cats collar on the bottom of your boot and that will have the name that is for the safe, using A=1 B=2 etc
I'm totally stuck now!! I've been on the daughters website "S.K.I.N" and the Tulkinghorn and Bristlethwaite website, got the photo of the vegetable competition and the fingerprint etc. Does anyone know what's next??