several ways to do it.
the easiest for me is by using the msg dBCode call.
If you look at the url of a message you will see f=somenumber&t=somenumber&m=somenumber.
That is forum, thread and message.
the format for the msg dBCode is those three numbers separated by commas and the whole thing enclosed in brackets.
your message is
Message 1
You can use peek to see exactly how I did it.