Diff oil seal, How far does it go in?

I just replaced the CV shaft and oil seal and 2 days later it is leaking. The leak is on the passenger side. I am thinking that maybe I did not seat it in deep enough or to deep. I put the seal flush with where it is seated. Or do I need to put it all the way to the inner C-Clip that retains the bearing. Any help would be great or even a picture.

 

what year?

 

1998 4x4. what do you use to seat the seal also.