The Dink Network

You could approach it this way: if you've played some dmods before, you could look into their scripts and see how other authors have done certain things, then copy and modify them for your game. It's how I started, I took some basic things like signposts and npcs and learnt how the basic say_stop etc. commands work. The stuff about brackets and conditions and variables will come naturally to you in time, and the guides iplaydink posted should also help I'm sure.

Try not to include any absurdly difficult scripts in first dmod, even if they seem neat... keep far away from the messier stuff like FIAT, since I promise trying to follow redink1's scripting will often just give you headaches