Change minimap pic??

Ive figured out how to edit spells and change icon pics but i still cant find out HOW DO YOU CHANGE THE MINIMAP PIC IN THE LOADING SCREEN???

Also can anyone tell me how to change the background loading img??

Insert a tga (256x256) as "war3mappreview.tga" into ur map. That should do it, don't use a blp, or it will show in the ingame minimap.

THank you... Now i can finnalllly make my maps look cool =)