ActionScript 3.0 :: Loading A Swf With FLVPlayback Component And The Flv Restarts Playing?

i have an fla file with 5 keyframes. Each keyframe navigates forward to the following keyframe. On the fifth keyframe, a Loader loads an external swf. The external swf has an flv playback component with sound.
 
The fifth keyframe, other than having a button to click to load the swf, has a movie clip that navigates you back to the first keyframe. The loaded swf, once loaded, may be removed using removeThis function which has removeChild code as well as a flv.stop(); which makes the flv stop when the swf is removed. So u're back on keyframe 5, no sound ASo, all is well and the user can navigate back to the first keyframe (from keyframe 5), and from there continue on to the 2nd, 3rd, 4th and 5th keyframes again,  problems start though, when you get to that 5th keyframe again: that keyframe has an FLVPlayback component playing an flv, which at that point becomes very sluggish as all the mc animations on that 5th frame. And worse, i realize, the flv in the external swf that was previously loaded, starts playing by itself, which i know, because i hear its sound track.
 
I tried putting a conditional statement to tell the _flv to stop on keyframes 1 and 5, but that causes errors, considering that the flv is an undefined property from the perspective of those keyframes.