If you write this, you put foreigners such as me at a disadvantage, because English is not my native language.
Otherwise concerning the function of
StreamTransport, it isn't able to capture rtmp urls from myspace.com at all, when you listen to music on that page.
So you have to use
Jaksta or
Replay Media Catcher to capture rtmp urls, but it writes that there's an SWF verification and otherwise the rtmp stream is encrypted, so it cannot be downloaded.
In order to circumvent this problem, you should use the most recent version of
rtmpdump and use the special commands -v and -swfVfy "http://lads.myspacecdn.com/videos/MSMusicPlayer.swf"
But in this case the downloaded mp3 file will be distorted somehow, so the only way to capture audio streams from myspace is to record it by the audio recorder of Replay Media Catcher.
So should you download a video file whose url hasn't been captured by StreamTransport and Jaksta or Replay Media Catcher wouldn't download the encrypted url, then that's the question: How would you download videos like that?
Rtmpdump might do the job, but what happens if not? Or you don't know the correct parameters...
And one more question: Why don't you have the possibility to paste the url somewhere in the StreamTransport? In this way you wouldn't be confined to the capturing.