If you are struggling to send a message to another user, then this step by step guide will tell you how.
Its easy to send a message to another user (you must be logged in):
1) First view their profile...
(there are many ways to view their profile: either click their image in the forum, or go via the whos online list or use Community >> Directory Of Members)
2) Once you are in their profile...
Use the 'send me a private message' section to the right or select messages 'send private message' from the menu bar. The second method provides more options allowing you to attach files to the message for instance.
Tip: from the profile view you can also send a friend invitation.