heh not that hard i cant remmber the path go into maps dl a non protected one with a custem loading screen open it go to imports then copy the path it has to be certin dimensions
Import manager -> import a 64*64 or 128*128 or 196*196 or any size .tga what matches a map size value in WE -> rename it to war3mappreview.tga U can even import blp for this (that is worse coz blp is huge... rather import .tga)