To change your profile settings,
click Profile (to right of Home near top of this page)
click Modify Settings in the menu that appears
This takes you to a new page
click Account then click Personal Messaging
then you'll see a setting for who you can receive messages from. Set this to all members (that's I have anyway)
For how to PM me, just click on my name on the left here
This shows my profile.
Then click Send PM which is just under my profile name on that page.
Don't worry about it though. It's more for future reference. Is there a forum tutorial/guide somewhere guys?