Heres how i did it all, and first of all DO NOT leave the variation field blank on any entries, you'll get the error you all speak of. If you noticed, for the ones that I didn't have a variation for, I put a period '.' in the field.

Enter 1 card at a time.

Enter the verbage (don't forget to put a period in the variation field) then hit update.

After the screen is refreshed, the clickable "img" link will appear for that card, I uploaded the image at that point.

When the screen in refreshed back to the verbage data entry, I entered the verbage for the next card, hit the update, and so on.

If you already have a type set named, all you do is go into edit after logging in and follow the above procedure.

Hope this helps, if not feel fre to email me. Keith