You have 2 major problems, but both are very easily fixed.
Problem 1: To view a flash file over the net, it must be a swf, not a fla. The way to fix this is when you have the fla open in flash jut hot ctrl and press enter. This will create a swf in the same location as your fla file.
Problem 2: php script does not go into the htm file, it goes into a separate php file. usually this file has the extension php but in your case it needs to have the filename "mail.php4"
anyway since they were such small probs, I fixed them, the only thing you have to do is unzip the file I've attached, open "mail.php4" and change the email address to your email. Then paste the files "mail.php4", "emkay site.swf" and "index.html" onto the server.