Loadmodule is a command. You stick it in your C:, and the icon library (the right version for your processor) in Libs:.
At the top of your Startup-Sequence you want to put something like
LoadModule icon.library REVERSE NOREBOOT
Or something to that effect. Sorry, I'm not near my Amiga this weekend and haven't used 3.1 in forever. It's easier with 3.9. There should be examples in the readme.
