1) Download the .sit file and unstuff it 2) Go to the folder you unstuffed the icons to and hit "Command+I" on the icon you want to use. This will bring up that icon's Info box 3) "Ctrl+click" on the icon in the upper left hand corner of the Info box and select "Copy" 4) Now do a "Command+I" on the folder or application you want to use your Homestar icon on to pull up it's Info box 5) "Ctrl+click" on the icon in the upper left hand corner of that Info box and select "Paste" There's a Homestar character in place of some boring system icon!! Thanks to Jen Ward for making these Mac compatible!