I only get hot water and not cold water. How do I take off the hande? The screw won't turn?

What screw?
There is a set screw in the underside of the handle. Make sure you have the correct Allen wrench as there also appears to be two different size set screws used.

Hello Famtnt,

Hkstroud Nailed it down for you I am just adding the following link for exploded parts view as an info,Thanks.

John

http://www.moen.com/shared/docs/exploded-parts-views/t3129pt.pdf