Who uses FameBit.com

We just signed up to Famebit, and a few gigs on there may be suitable, enough to write a proposal anyways and try.
Does anyone have suggestions of what should be in the proposal?
Are they looking for detailed ideas of how their product will be incorporated in the video?
Do they need a script, or just a general idea?
Do we need to talk about our channel, that sort of stuff?
Thanks for any suggestions!
ive put zero effort into propsals and had....zero responses so im guessing yes to all of your questions but without being to waffley :)