Red5 Screensharing is not working in Ubuntu

I have ubuntu environment. I want to have a screenshare option in my webapplication. I am using red5 for that. I can stream using red5, so thus no problem with installation.

I am using screenshare application from here.
https://code.google.com/p/red5-screenshare/downloads/list

I have followed everything mentioned here
http://devsteps.blogspot.in/2012/02/red5-screenshare.html

I runned it and started screen sharing. But the problem is, its not creating any screen_share.flv file in my streams folder. And, when I access screenviewer.html via

http://localhost:5080/screenshare/screenviewer.html  

its giving only blank screen. What is the problem. Any suggestions?

Edit :

I don't know, whether its true or not. But red5-screenshare application is working with ubuntu-32 bit systems but not with 64-bit. Now I installed 32-bit os. And, I say, partially this application is running. But again getting few problems here. I can able to see my screen but its giving output like this

Its may be because, I am viewing it in my computer (server and viewer is same) so, its coming like this (?).

And I have another problem also, Its not getting accessed in other systems. In other systems, I am only getting a blank screen. No console errors too. Unable to find a way to forward. Can anyone help me here.

I solved it! First problem, as I guessed its because I am viewing my own screen so mirror views are generating.

Second problem, Its because of static url declaration. Here is the modification. In screenviewer.html

    var tot_url = document.URL; //url: http://192.x.x.x:5080/screenshare/screenviewer.html
    var http_removed_url = tot_url.split("//")[1]; //remove http:// from original url
    var ip_port = http_removed_url.split(":")[0];//filter only ip and port : 192.x.x.x:5080

    var stream = getPageParameter('stream', 'screen_share');
    var url = getPageParameter('url', 'rtmp://'+ip_port+'/oflaDemo');

And, it worked for me. A small bug is there, its not working in firefox. I think its different issue now.