I did another vb to XF test import. During the members import there were some conflicts of accounts that needed to be merged. I forgot to not these down and fix it on my live vbulletin site, so that I am not encountering the same conflicts again. I did not complete the import yet. Is there a way to find out what the conflicts were?
If you've gone through that step, not particularly easily -- at least not in a user friendly way. It may be possible by inspecting the xf_import_log table, identifying places where the "new" user ID is used multiple times. (This may be identifiable with a query, though it wouldn't be a particularly fast one.)