02 to 03 transmission swap questions

[Biggsjam21]

Did the swap of trans from 02 saab 9-5 arc to an 03 saab 9-5 arc..... but now I don't move in any gear.... it feels like it changes but giving it gas it won't move.....
Am I missing a sensor or would the harness be different and I'm plug something in wrong???
I did get a CEL p0715 for a trans speed sensor
Which I removed and cleaned and put back (which I know won't fix the issue if it is burnt out/bad sensor but even for a few feet it should let me move before it shoots the code) the 03 is at a shop right now but I don't want to be over charged when it can something small that they may over look and tell me replace the whole thing....
HELP!!!!

[Digger]

You had a motor that you thought was seized after the tranny replace and it turned out to be an improperly installed torque converter. Did you lift the drive wheels and put the car in gear with the engine running? as you're still looking for the silver bullet probably not. If you're not turning the tranny shaft you have no fluid movement to make the wheels go round and your tranny speed sensor is telling you that the tranny guts aren't spinning.

[Biggsjam21]

I did not lift the wheels as it is in a shop at the moment... I just called like 15 min ago was told they don't know what is going on with it they need to run a couple more tests to know... btw I have not told them of the speed sensor just because I want them to tell me that..
Thanks for the reply thou I will keep everyone updating hopefully tomorrow I get good news and if you have any more suggestions or ideas PLEASE COMMENT ON THIS.. THANKS IN ADVANCE