Hi..!! I've registered because of problem..

Hello, this is my first post on yours site, I thing it's great. I'm reading it for some time.

I've registered because of problem. So I'm asking you, because I've seen here many smart and good people to help me to understand this correctly.
I am From England
Nice day is it today, but I have a question for all...

In first , how i post message to PM...???

Thank you very much!
Mark. G..!!