Hi im william.I was wondering how to put in models and stuff into a map.I was wondering because im thinking of becoming a map macker.I hope someone here responds.BYE.

To put custom models into a map, you need to use the import manager. Here is a tutorial on the subject:

http://www.wc3c.net/showthread.php?t=91803

You can find custom models on WC3 mapmaking community sites such as:
www.wc3c.net
www.hiveworkshop.com