[PHP-WIN] testing SMTP Mail send on windows

Hi I am very new to PHP and have just taken over our PHP website. This site was running perfect on linux but is now hosted on windows - IIS 5 (which is what I am currently testing on ). The one thing I cannot get to work is sending the "enquiries form" via SMTP. I have amended the PHP.INI file in

[PHP-WIN] using the mail function in php

I am still very new to php and I am trying to get my head around the mail function. If I set the content type to html (Content-type: text/html; charset=iso-8859-1) I can do basic html. Function details: http://au3.php.net/manual/en/function.mail.php However if I have any html that requires quote