How can view user activity log ?

[alvinhk]

is there any statistic for user's activities.
ie. user navigation log. what pages are they browsing ..etc

[RattleSnake]

What page they are on if theyre online, just click on them...

[Marco van Herwaarden]

There is no user activity log.

[alvinhk]

how about any user login and logout history?

[Marco van Herwaarden]

There is no such history logged.

[Floris]

The most statistics you will find are in the admincp > users > search for user

Here it will have the IP they registered with, the ability to find their IPs used to post, and their last activity, visit, etc log dates.

Per user statistics are not logged and kept.

Global stats can be found under admincp > statistics & logs > statistics:

[Top Statistics]
[Registration Statistics]
[User Activity Statistics]
[New Thread Statistics]
[New Post Statistics]