Hi!
If you know the name of the escort (username), click on ***Send New Message***
Type in the name of the escort and if it is correct, the name will appear in a yellow box.
Click on the yellow box and then the rest is easy.
-or-
Select on Community in the green bar, then Member list:
https://www.escort-ireland.com/boards/memberlist.php
Type in the name of the escort (username) or any other member on the forums in ***Search Members*** which is on the right side.
When found the person you wish to PM, click on their name which will take you to their profile.
And then ***Send Private Message***.
I hope it helps!