The updated RETAIL Trainer has all working options except for adding the skill points. When I press Num6 nothing happens - but all other options on the trainer work. Just an FYI.
for this option, you have to use the upgrade pods. enter the pod, note your skill points. leave the pod. press option key. go back into the pod. note the value has increased.
we don't have the retail, so i have no way to test it properly, but the code was identical to steam, just moved.
best,
Cal