yeah, as panjgoori said above N14 is not stable and nor is it likely to be in the near future. Stick with N12 (although you can try the updated 2.3.7 version) as it's most stable. If disabling pin lock in Maemo hasn't fixed airplane mode (I presume you have tried to disable airplane mode after pin lock was disabled) try un tarring the archive again. If however, you have a connection to your network (can receive text messages) but no 3G, you'll just need to add the APN settings.