Lol we would be typing for weeks to teach you all the things you just asked!
But if you go take a look at
http://www.sphereserver.net you will find everything you need. Including forums for your questions, tutorials, and a selection of scripts you can dl and use on your shard or just to teach yourself from.
But to answer 1 thing you asked..
You set your areas (towns, wilderness etc) in the region file. As for spawning monsters etc, they have nothing to do with regions or the map and you can spawn them anywhere you wish and at any rate. The best thing to use for that is Axis. You can find that at
http://sphere-axis.sourceforge.net/ . You can use Axis to build, spawn, manage accounts and a 1000 other things! Its great!!
