I assume you mean this program (I didn't check our download site): www.brothersoft.com/messenger-detect-80757.html
The page I link to contains the url of the makers site. I think it's best to visit them or contact them with your questions. I don't expect many of our members visiting this forum use this software and can answer your questions. Moreover, spying programs aren't very popular here.
Paying the $26.95 it costs anyway gives you the right for support. Use that.
1. I just purchased Messenger Detect yesterday. I cannot tell an difference between the trial version and the purchased version. Could you please tell me the advanced features I obtained by buying.
2. One of the advantages I understood from the literature was that the trial version monitored 2 computers, but the purchased version allowed you to monitor 3 computers on the network/LAN. BUT...it is same as before, no additional computer on the network is shown to be available.
3. How do you turn the monitor on or off. There is nothing in the literature that tells you how, and nothing on the monitor screen to turn it on or off?