Glad to have you here, Maximo1. I'll share details about your concern today.
Installing discs and downloading links for QuickBooks Point of Sale 8.0 is no longer available since it's already been discontinued.
I recommend contacting our Customer Care Support for QB POS to help you reinstall the program. You can get their contact information through this link: Contact Point of Sale Support.
Feel welcome to post again with any concerns you may have. We've got you covered.