What am I not getting here from bill204872 question.
I have not yet purchased this.. but I will tomorrow to better help with these questions. But I don't get the problem.
If you have a database of users, it won't matter what the db field names are.
If I understand this product, export your current list, create a new db field set, and import to use. This is pretty easy stuff.
I will purchase tomorrow and report back, but seriously, this looks pretty basic. If you don't prep your cvs file to match, there will be issues, I'm guessing. Look at the screen shots of the table. Export your existing csv table. Make them like each other, then import, I am just guessing.
I'll buy tomorrow and report back, but I am guessing this is a cake walk.