Thank you both.

[code ] [/code ] works and thanks for pointing out the '#' on the menu to add the tags automatically.

Unless I'm blind, there is no "Go Advanced" button at the bottom-right of my posting window. All there is in the window, apart from the Smilies selection table on the right, is a selection of icons to mark the post and under that there are the 'Submit Reply' and Preview Post' buttons. A separate section beneath those gives Additional Options, none of which imply advanced editing options.

No matter, I'm good go now, thanks.