It is not difficult at all.
In the Board Statistics box at the bottom of the Forums, and under the colour code information, you will find:
Show detailed by:last click, member name.
Clicking on member name will initially only show what BC Members are doing (you can change that to "show all users"); Clicking on last click defaults to all users sorted by most recent clicks. You can change one view to the other by changing the first sort box. A browser "refresh" is needed to update to current usage.
Something similar shows when you are viewing a forum thread. At the bottom of the screen you can tell how many people are reading the topic and the names of any Members viewing it.
Edited by jgweed, 28 October 2005 - 08:35 PM.