ahhh, well I guess they are still standard.
Anyway I am trying to use this one:
I had the email scripting in Perl but am going to change it to php.
I ran a test here
http://www.campsaustraliaw ide.com/te st.php
and got a positive result so I expect all my settings are ok.
If my solution works using phpcaptcha I will close this question. While you all helped me to discover a solution I ended up using my own. Not sure if I can award points for the efforts given that helped me get to my end result?