Affiliate Marketing Secrets

I have written a 25 page submission script that I think would make a 20-30 minute video suitable for a few niche websites. I’ve started emailing them asking if they would be interested in seeing it.
Should it be registered with WGA?
What sort of payment or deal would you expect?

I wrote a story that I think would make a 20-30 minute video suitable for a few niche websites.
How should I submit it? Would it be better to write it as a submission script first? Should it be registered with WGA? What sort of payment would you expect?