Thanks for the reply,
But I was looking for more of a script or something I could link a button to, to be able to upload files to the FTP server from the website.

I did some research earlier and I found things regarding PHP codes. I don't know if I can link that to the "upload file" button that I want or not.

http://board.flashkit.com/board/showthread.php?t=283625
I also found this, but when I tried it, it had an error saying "Adobe flash player has stopped a potentially unsafe action" (after clicking the browse button)
That was also not in AS3 i believe.

Hope I can find a solution soon