Hi davevulcan,
Thanks for reaching out to us here. I'll be glad to steer you on the right path so you can get the answers you need in order to move forward with your business.
You can install QuickBooks Desktop using the original installation CD. In the event the CD isn't available, you can use you license and product number to install the program on another computer. Here's a link that shows you were to: Download QuickBooks Desktop. Here's a helpful article that shows you how to: Move or reinstall QuickBooks Desktop to another computer. If the info in the article doesn't suffice, feel free to ask questions here. Otherwise, you may need to upgrade to newer version.
In the meantime, feel free to ask other questions. I'm here to steer you in the right direction.