Questions and answers about ERM scripts for WoG.

Thanks, but I downloaded ERM and don't know what to do with it, where to go? I downloaded h3objed, some kind of tool for editing one object into another... I do everything, insert it into the map editor, and the computer freezes, and I have to restart. What did I do wrong? Then, where can I download objects, maps, monsters (new ones), and cities for WOG?