The WS View Profile mod adds a new feature to your phpbb forums to display the last 20 members/visitors that has viewed the user profile.
This mod also adds a new field to the nuke users table to count the total views that user has received.

You can see this mod in action by viewing my profile page from the this link Demo
Scroll to the bottom of the page to see the mod in action

* This mod will not store the user if they view their own profile. This will provide an accurate count.