this is a fullsize 1500 4wd right? if it is, you could just look for a video of a rotor removal as in: http://www.youtube.com/watch?v=rM2GPeQ4YJc
or a bearing repack. Once the rotor is off you can hammer the broken stud out and using a drift hammer the new stud in from the back.
If you have the tool or a series of washers and an extra wheel stud you might be able to replace the stud without taking the rotor off. Once you take the rotor off look from the back where the inner pad contacts the rotor and see if there is enough space in the back of the rotor to access the wheel stud. I think there might be. you could drive the stud out and with a magnet fish it out of the rotor well. Using the magnet or your fingers put the new stud into the hole place some washers (that are bigger than the diameter of the stud's base) then use the lugnut to pull the stud through. I have a special tool that is a thick spacer and a shouldered nut that is used to pull the stud in.