Maybe try this. It's based on the Youtube embed code, which works on Myspace, but I haven't tested this.
code:
<object width="400" height="20"><param name="movie" value="http://vaccination.kernke.org/player/xspf_player_slim.swf?song_url=http://vaccination.kernke.org/player/Gore%20Gore%20Gadget.mp3"></param><param name="wmode" value="transparent"></param><embed src="http://vaccination.kernke.org/player/xspf_player_slim.swf?song_url=http://vaccination.kernke.org/player/Gore%20Gore%20Gadget.mp3" type="application/x-shockwave-flash" wmode="transparent" width="400" height="20"></embed></object>
If it doesn't work; holla back and I'll make a proper version (unless somebody else beats me).
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