Easy Colin.

I will see if I can do screen shots sometime soon.

eg

MAIN INDEX

Select a forum.

eg
DOUBLE RIFLES

There is a bar or line just above the forums threads.

eg
Double Rifles, Single Shots & Combinations >> Double Rifles Post Previous Index Next Expand

Ckick on the POST and you can start a new thread. You need to put in the thread title ie the SUBJECT, and the body of the post on the "POST" box. Then CONTINUE at the bottom. If you have the PREVIEW box ticked, you can read your post and review it and then hit "OK SUBMIT" . If PREVIEW is not ticked, CONTINUE will post your new thread post.