Well, you help out however you can, making sure to post what you are doing publicly. Then at the end of the contest, you summarize everything you did, and we split up the money among contestants based on the opinions of myself and the other contestants and devs about how valuable each person's work was to the project. More valuable = more money. It is subjective though, and payout is highly dependent on how many other people are helping out and how much they are doing.
I've never seen anybody else do bounties this way, but it seemed to work pretty well for the last one we did.
I think we might need a to-do list. Then I'll select something I can do from the list.
If it's sending test transactions maybe I can do that when there are clearer rules and instructions on how to make decentralized transactions.
I hope to provide a test plan for people who are on Linux/OS x and who want to test my Wallet software. It will run on Windows but it's a bit harder to make it work. I will provide instructions when my next build is ready.