GV: You will see folks on this board who have been very proactive with updating, connections, attended job fairs, etc and are still waiting after a few years. There are some amazing chaps and chapettes who got the call within a few weeks after submitting the application. Everyone's mileage may vary.
For me, I had to let my application lapse for about 8 months because I could not meet the requirements (i.e. out on medical). I am in the process of updating my application as this was my primary company I wanted before. I have several internals and I know I can pass the written old and new.
I would recommend patience and persistence---humor always helps too. If you are a safecracker, breaking the HR Code will serve you well.
Best to all as always. For me, it is great to be back.