All you have to do for a CopyRight is put a copyright notice in the code. Registering is typically reserved for Trademarks and such.
There's nothing saying that you can't make money off your product as an individual... I just wouldn't spend any of it until I got a lawyer and an accountant, after which there probably won't be much left anyway

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Good luck whatever you do.
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I'm a soldier in the NetScape Wars...
Joel