Instructions:

On the Macintosh, click the image of the pattern and hold down the button then choose the option that allows you to to save the image to your computer. Then just go to "Desktop Pictures" in your control panels (called "Desktop Patterns" on pre-System 8 systems) and drag and drop the file called "bigtease_pat1.gif" onto the pattern or picture box.

In Windows 95/98/NT, right click the pattern and select the option that allows you to save the image to your computer. Go to your "Display" control panel, and select Background. Under "Wallpaper", select Browse, and then locate the pattern file which should be called "bigtease_pat1.gif". Select the pattern file to use it, and you're all done.