Hi
Call your CAA and ask what are the requirments to get your I/R back.
when it has been expired in 2007 so 7 years maybe you have to do some extra sim.sessions and there after a prof.check.I hope that they will not say that you have to do the grounschool again.Here in Europe the ratings which has been expired for more than 5 year,is a big problem.
I hope you will get it back