Torque Converter/Pump shaft installation

[Cam]

Alright, my engine is in the air. Tranny is in the car. When I removed the engine, I did not disconnect the four bolts that hold the torque converter to the flex-plate. The engine came out, then I disconnected the TC from the flexplate.

I am able to remove the pump shaft from the transmission and put it back in. I do not know if it is seated fully into the transmission. How much should protrude when fully installed? I have about 3/4" from the end of the outer splines (from the transmission) to the beginning of the splines on the pump shaft.

I so far have been unsuccessful at installing the TC (obviously). I have a few questions that I am hoping will help me get my engine back in.

First, the pump shaft. How is it installed? I think I read something about a circlip holding it into something. The transmission? Or does it get installed and retained into the torque converter, then installed as an assembly?

Second, The torque converter should seat if I push it in while spinning it, right? So far I get it to seat twice, but I cannot get it to fully seat into trans or make it mate up with the starter.

Third, does it matter what gear my transmission is in? (P, N, D, etc...)

So, is it possible that the pump shaft is not in all the way? I imagine if it is not in, that would explain everything.

I have read everything I can find on this site about this and cannot find the information I am looking for, so any help I can get would be much appreciated. A step-by-step of how to put it back together from where it is at now would be awesome. Thanks in advance ahead of time, guys.