Hi!

If you want to get up and running fast i suggest you follow Diamndzngunz advice.

If you on the other hand want to learn some AutoHotKey and get it working that way I'll give some easy steps:
(some AutoHotkey experience can be very useful for other things than WoW when working with a windows machine)

1. Install autohotkey (this you have done, if i got it right)
2. Start->Programs->AutoHotKey->"AutoHotKey help file"
3. Read the first few chapters of the help file. Focus on everything about HotKeys and KeyRemapping.
4. There are several examples in the help file that you can try out yourself. (like script that auto-opens notepad and types some text etc.)
5. Take a second look at the scripts posted in the stickies.
6. Combine your new won knowledge about autohotkey and the scripts on this site and customize to your enjoyment.

Note: You don't need to understand the program-structure or variables etc to be able to make a simple multiplexing or remapping script.


Good Luck whichever path you choose!