Hey Tom,
I’ve been trying to get support for a backup disk project here: http://sierragamers.com/aspx/blob2/blobpage.aspx?msgid=634063&bbs=Topic.418710.530202
Please post the diskette size (5.25″ or 3.5″) and the version # of the game you have (listed on the floppy labels). With that information, myself or someone else here should be able to provide a replacement disk for you.