How can I submit a flash form contains name, company, email, and message fields to a script (php) to process and sends the formatted information through email.
I preffer using AMFPHP/Flash Remoting for almost every bit of communication between flash and PHP. Here's a good link on installing AMFPHP and consuming the webservices in flash.
Alternatively you can have flash do a sendAndLoad with all your variables to a mailform.php. I believe there are some good tutorials on this site for it.