I am having the same problem as Dollfayce and many others in this thread. I have installed this add-on EXACTLY as the instructions (obviously English is not strong for the writer of the instructions) say but I also am having the same exact results. I am using Zen Cart 1.3.8a.

If I select "radio button" or "check box" as the option type and 6 as the Attribute Style for Radio Buttons/Checkbox, my option values disappear on the front end. There is a place on the Item page that shows "Please Choose" and the name of the option but there are no choices to select from.

Can someone who has gotten this to work show us a working store to prove it and also detailed instructions on how to get this up and running?