I signed up my project. But the form seems to be the standard form you guys use for everything else. There were no fields for the specifics that are defined on the open source page.

I think it would be clearer if you had a slightly customised form for the process

Give your earnings to a charitable cause (charity:water, Mozilla foundation) and we take 0% beside feeling good ;-)

Other than that, it covers basic operating costs like payment fees, escrow, invoicing, Support QA.. but it may be that we turn it into 5% as soon as we reach the $3,000,000 ;)