problem with streaming in gstreamer

this is the format (realplayer streaming)
rtsp://live.media.rai.it/broadcast/radiotre.rm
gstreamer can’t “read it from source” while vlc can. I have the latest gstreamere updates on packman for os 11.2
where can I file the bug?

find the package on Packman
PackMan :: Startseite
There are email links in the Packager details