Yes, this is an old model now. I've had a few people looking for the Uniwell UX 70 but I haven't got any info any more. got rid of it a few years ago. C-tech is the only one I know of with a UX-70 programming manual. Copy and paste this link into your browser:
http://the-checkout-tech.com/manuals/cashregisters/Uniwell_UX-60_UX-60F_UX-70_UX-70F_UX-75_UX-75F_UX-M720_type_05_programming_manual.html
When you get the manual, it will be under PLU programming section.
Registerman
May 2012