[Passout]

Goto the tutorial section and READ the simple-medium scripts that are being taught.(Even if its something you don't want in your gamemode) Read and understand how the function works. What the "cause" and the "effect" is.
It will take some time but eventually you will soon understand how to script. Also don't expect to learn how to script in one or two nights. It could take you weeks or even months

http://forum.sa-mp.com/forumdisplay.php?f=70