Ok there is a directory called "Script bank" (I think), and you put the scripts there.
If you want a specific stript look see if its already here via search. Try to start your own script, and then ask for help. You will be amazed at how much more help you will get.
One on the sticky threads at the top of the script thread page, has information on how to start.
You are probably thinking "But I know nothing about scripting", which is true, but lots and lots of people will respect noob questions about scripts you have written, (and often post the whole solution), rather than when you post a "Give me a script"
H&K