mini_kris,
I think the problem with the doors not opening properly is due to the fact that door poppers were not installed along with the remote operators. Most kits don't come with the door poppers, so my thinking is that they get forgotten about.
Some people have just used the weather seal to pop open the doors enough to get your fingers onto an edge and open the door. My thinking is that this would work well until your weather-stripping got a bit worn in and then may not work so well.
Anyway, just my $0.02...
Cheers,
Doug