Woa... ok one at a time Sydd! First familiarize yourself with the files and their extensions. hr2 is hair, pp2 is a prop etc. and know where everything goes so that you will be able to find it. ALWAYS read the readme file that comes with something as there will almost always be information as to how to use it. You don't mention if you have Poser 3 or 4 but if it's 4 remember you have characters that are Poser 3 and their textures are totally different. Make sure you're using a P4 texture on a P4 character. As for the breasts or other body parts, you'll have to experiment. Visit Traveler's Morph World (link on the right) and get yourself all kinds of morphs. But remember it takes time so arm yourself with patience.