Thanks for your help. The Web Host has now updated the php.ini file so that no errors are reported when the http://www.agentsolar.com.au/contactus.php page is loaded. However there are more errors reported when the Contact Form is submitted.
The Form Data is being sent to the nominated Email address successfully though, however the Thank You page is not being loaded.
I would again be very grateful if you would once again complete the form on http://www.agentsolar.com.au/contactus.php to view these new errors and again advise of what modifications should be made.
Peter de Salis