Just to pass on my experience of using Kongregate. As mentioned, after uploaded your game can take a few days to be recorded for revenue. After that it should update every 24 hours (Some times a little longer).
Usually your game won't be rated yet until a certain time limit has passed (Or play count if its very low). I think for my first upload it took a few days with only 100 plays before it was rated. I was testing the water as with my other uploads, my advice would be to not rush uploading anything (Like I did) as you want to get at least 3 stars when your games is rated (More likely to increase further traffic to play your game).
If you are integrating with the API for highscore etc.. to get the extra commission. You'll need at least 50 different registered recorded in the highscore tables, before this is added. So you want to programme your games to record the score during the game, not just at the end, else the play may exit the browser before the score is sent and recorded. This can result in fewer user scores recorded in the score tables, even with a high play rate.
If you are ONLY uploading to Kongregate to get the final commission (Bringing it up to 50% with API integration). Then you may need to incorporate their logo at the beginning of the game. It took my second game (Space Star Shoot) almost a week to be available for revenue this way after uploading it.
And further more from experience, you should make AT LEAST $1 per 1000 plays, but this will increase if your game is popular and depends on your commission rate. Just remember to fill in the IRS tax form, else Kongregate can take 30% your earnings when you collect.