dudes can you help me? I want to make a UMS map a defence map but i dont know to create them...Can you give me a tutorial or something how to make maps and all that..

A basic defense map is to make units by creating or buying, and then creating units every so often as levels or waves. Just play a plain defense map like sunken defense, and try to mimic it.

B.net needs good maps, not more crap sunken defenses. Try and think of new ways to do things, like using spells or special abilities or whatever, then make a defense map out of that.

Fwop this is true but,he is new at UMS so he wouldn't know how .

I would suggest starting with the basics, and a defense map is a bit complex for a first map.
Go into StarEdit and read the help file for a start on mapmaking.

My way into mapping was through editing maps. I took a map and changed a few things.

This way you dont have to understand everything that happens from the start but you will understand it soon enough.
Maybe this works for you too.

Or you can try making a madness map. The basics for those are very easy too.

How dare you say that my first map was a defense map .

its not?

Just play around with triggers. Create an open map. Make different locations and make them. Add triggers to create units at each location at around 10 second intervals. Now create triggers to tell them to attack.

Hmm... Yeah, this community really doesn't support new mappers very well. Though, here you might find what you need to get started. Myself and a few others have been working to develop the WarBoards community to be pro-new mappers. I would suggest coming back here for more advanced mapping though.