Whether or not you use live timing, RaceReady is the best tool for scoring your racing event.
In your Promoter account, find the event in question, and select "Manage Race":
Go to the Results tab, find the race you want to score (you can jump straight to your specific race by selecting it from the popup when you land on the Results tab), and select Actions > Score By Number.
You'll see a page where you can edit the final results for a given moto (or heat). First select the moto (heat) you want to score, then enter the bike numbers in the order in which they finished. Then select Save. Repeat the same process for any motos and races which need to be manually scored.
You can also edit results that have already been recorded (whether manually or by live timing) by going to the Results Tab, selecting which race you want to score, and then clicking "Score by Number":
You can now change the values shown here, however is needed. Just click "Save" and they will be recorded.
If you'd like to print the results, you can find each race's results in the Results tab, and click Actions and Print.