Thanks.

The problem is me. Just about every other comment I remember about image numbering complained about how WD5/XX5 did it. So I understand why you changed it in WD6.

I've got other files that haven't been created by WD5/6 or XX5 in the index_htm_files folder that I don't want to lose or have to repeatedly upload. Short of moving those files elsewhere and updating the links to them, I suspect cleaning things out and doing FTP publishing/updating with WD6 is going to be the easiest.