When an answer type ('_name_') is added: 

- create a help file in the directory public_html/modules/scripts/help/anstype 
with name _name_.phtml 
and eventually in oher language directory anstype.$lang ; in the language
you do not know, create a help file and copy something like

!changeto  help/anstype/_name_.phtml

- add a line in the file public_html/scripts/help/$lang/reply.phtml in the variable
typelist2 (do it in any $lang/reply.phtml, by default in english to help the translators).

To add a new section in the help of Createxo:
- create a file _name_.phtml public_html/modules/scripts/help with the line 
!read help/$lang/oefscore.phtml

- create a file  _name_.phtml in the subdirectories public_html/modules/scripts/help/$lang for your language
 - write in this file the text for the new section 

-  in the file adm/createxo/lang/help.phtml.$lang, add a line
:_name_, title_for_the_new_section
in order that a link title_for_the_new_section appears in the table of contents
of the help of Createxo at the place you want 

- add _name_ in the definition of the variable helplist in the file 
public_html/modules/adm/createxo/help.phtml
The order of items in this list defines the order of file reading.
