Ok I made a window with a listbox (or whatever) on the side of it. I'm wondering how I can put things in there and then link them somewhere. Like I want to put the word 'Free Play' and then it does a command. How would I do that? Thanks.

What you want to do can be done but it would be easer if you make it using a dialog window.
Dialog Studio can help you design a dialog window for Mirc
all you do is create the script. Dialog Studio can be downloaded from
http://www.mircscripts.org/dstudio/dstudio.html