I've got hold of a couple of 8707g's running OS 4.1 with an IT Policy applied.
Is it possible to remove the policy ?

I've found plenty of doco on how to remove one if you're running 4.5, but I can't upgrade to 4.5, only 4.2.

Any one got any suggestions ?

See Method #2 at Remove IT Policy - BlackBerryFAQ.
Posted via BlackBerryForums.com Mobile

Thanks, but that doesn't work.

Device is running 4.2 (the latest OS i can find for it)
DM is version 6.1
There is no registry key called HKEY_Current_Users\Software\Research In Motion\BlackBerry\PolicyManager
and when i create it as per the document, nothing happens.