You should check the beginner's thing again. Rysen's Tutorial in particular can guide you through the first steps of using the tools.
But in short:
"How to create maps?" Well, that involves creating a tile set (generally using an art program, recommending simple MSPaint and The GIMP here (www.gimp.org)) and then placing the tiles in Maped.
Ben McGraw's lovingly crafted this website from scratch for years.
It's a lot prettier this go around because of Jon Wofford.
Verge-rpg.com is a member of the lunarnet irc network, and would like to take this opportunity to remind you that regardless how babies taste, it is wrong to eat them.