$text = InputBox( "Folder", "Type the folder name" )
DirCreate( @DesktopDir & "" & $text )
 
I suggest browsing the Example section of the forum.  Find a script that interests you. (preferably one commented a lot) 
Run it, then read the entire script and figure out which part does what.  That's a super-quick way to get a head start.  That's what I did. 
 
After that, browse the help file.  It's insanely detailed.