Fedor should be able to beat Tim pretty handily. I actually think he'll be able to take him down and dominate him there.
If it is regulated by any commission. The rules are the same as anywhere in the US. Not just UFC rules, but US rules. There for I do not see any knees to the head happening. Fedors only chance is to take timmy down and sub him. He will be eatting Jabs all day like Nog!