1995 Saturn SC1 tranny problem

I have a 1995 Saturn SC1 1.9 SOHC, I recenty had to pull the transmission to replace the torque converter O ring seal, I put the transmission back to the engine all of the sensors and what not are hooked up and I have the propper amount of transmission fluid in as well but when I start the car and I put in reverse or drive I get nothing! :( Could this mean I need a new tranny or replace the torque converter?