I'm no expert, but i think you may had to re-model his hand, since the medic's hands are his gloves by the looks of things.

Ok.Thanks.

I'm currently making a new knife for the spy and i followed most people's advice of asigning it to a weapon bone,however,the Spy SMD model has 4 different weapon bone's,which one do i use for a knife?

(The "Your Eternal Reward" type of knife.