after trying to install the app, try out: apt-get install -f
#apt-get install -f Reading package lists.... Done Building dependency tree Reading state information....Done 0 upgraded, 0 newly installed, 0 to remove and 2 not upgrade.
Info Gstreamer library caused the program crash, try updating it to the latest version. Program will start with sound disabled.
btw, this app is for the N900, fyi