I migrated my members from Active Social using the utility. I created a New Member Directory page and it is loading them into the Member Directory module. But the links were going to the OLD member profile, which I still have on the site until I get the migration completed.

So I looked in the Member Directory template and I see the link is controlled by the ProfileUrl parameter. What creates this? How did it know to use the old Active Social profile? 

So I thought I would try to hack a custom url by replacing ProfileUrl with 'Member-Directory/Member-Profile.aspx?userid=' + UserId() as I saw another question where someone did something similar. That is working but I am curious as to how the ProfileUrl is really supposed to work. And will Vanity URLs work in the current version?