If they don't seat you will have excessive air move past the rings. If the compression readings were okay.. then I wouldn't worry too much. Those leakdown readings are a little high but would probably be better had the engine been warm.
Regarding TDC, if you weren't at TDC the air would have came out the airbox or the exhaust pipe. I would say don't worry about it, you don't have a blown head gasket and the injectors will be back soon read to install. Make sure they are lubed up and installed correctly!!!!!