I need info about converting Preps 4.6 marks to smart marks in Preps 6. How to convert before installing marks into?
The Preps application is commercial which means there is no document or troubleshooting guide or at least a tutorial on how to operate the software. If you have it installed on your computer, then go to Help > Help Topics. You will find all the supported features in that location. Secondly, you can contact the developers (Kodak) using the form on the homepage of the product.
Contact form: http://www.graphics.kodak.com/US/en/Product/printing_workflow/Production_Planning/PREPS_Software/default.htm
Note: It's a sales form, but you will be forwarded to the right department.