Not sure how to send pm.
If you look under the user's name on the left-hand side of the posts, you will see two small icons/buttons as in the attached.
Clicking the left hand one will take you to the user's profile. Clicking the right-hand one (it looks like a page of writing) will take you to the personal message page so that you can send a message to them. If the icon is green i means that they are currently online.
You can also access the system by clicking on the "My Messages" button in the black top bar. The option to compose a message is on the top left side-bar under "Messages" as "New message"
Hope that helps.
Nell
