[closed] How to decode FP over UDP?

I am using Wireshark version 1.6.4. I have some FP packets in pcap format. However I do not see FP protocol option in "decode as" list. However Enabled protocols， shows FP protocolsenabled which indicates Wireshark supports fp. I fill "fp" in filters,I can not get no Packets filtered.Howerver,I see some packets over UDP transported from RNC.

Please tell me how can I decode packets as FP. Those sample fp packets are transported over UDP. Yet I do not see fp protocol in "decode as" list.

Thanks and regards,