Ok... Ive added the following to:
db_field_definitions.php
$additional_user_fields['contact_number'] = array($lang['contact_number'], "text", 1);
$additional_user_fields['organisation'] = array($lang['organisation'], "text", 1);
lang/main.php
$lang['contact_number'] = "Contact Number:";
$lang['organisation'] = "Organisation:";
Am I on the right track? Not really sure where to go from here...please help!!!
Thanks again