Php mail form

I did manage to make this php mail form works but once I put it in my main movie (as an mc) the status message will get stuck to the waiting stage even if the email is being sent properly though. Same problem if u try to load it as an external swf (in containers or in level). I tried whatever I could think of but to no result.
I attach the fla and php file of the mail form on its own (working). If someone could explain me why it won’t work once as an mc in another movie, I would be the more grateful.