Hi,
yes LS dosen't work anymore so vaughnlive has changed some paramters but you still can use rtmpdump instead but you need to be quick or code anything what does the work (maybe I should update my older vaughnlive loader).
Stream IP & mvnkey (MD5) can you grab from mvn server (just debug the traffic to find entire paramters).I tried it manually now and its still working...
PS: Or wait till LS was updated (maybe anyone does send the author of LS a message etc).
greetz