fixed it using the shell:

Assuming that you know your root password or have root access: [ http://wiki.maemo.org/Root_access ]

Step 1: Uninstall FMReceiver from application manager
Step 2: Open the shell (x-terminal)
Step 3: run : "apt-get install fmradio"
Once step 3 is complete:
Step 4: run "apt-get install gstreamer-tools"

now try running the app.. worked for me.