What car have you fitted these to? Your profile says a facelift?
If it is a facelift, you need facelift seats.
Not using facelift seats will reduce the safety features (so you should inform insurance), and lose the seat heating (assuming the seats you fit are minifacelift!)
Sounds like you have fitted pre minifacelift seats, in which case you have entirely disabled the SRS system. Just a wee bit daft imho.
I'd urge you to consider getting some facelift seats (or mini facelift as a minimum, but no heating or active head restraints), then you can get the airbag light reset