I also bought fmradio. Used it on mine Nokia n9((which was stolen), and now I have it installed on mine brother's n9 (he gaved it to me). I am not using this n9, because it's in very broken state and will probably need reflash.
And I never heard it's IMEI related, but more related to Nokia Account and you can obey it by changing apt-get policy (otherwise it will crash after !30 seconds)