FAQ: How to record/download/capture/save Macromedia Flash .FLV video HTTP stream from embedded player
FAQ: How to record/download/capture/save Macromedia Flash .FLV video RTMP, RTMPT stream from embedded player

Have you read the FAQ? You may grab any .FLV file streamed through the HTTP protocol from the cache folder of your web-browser. So I don't even wanna to try to check this out.