Print it out, take it to a http://en.wikipedia.org/wiki/Notary_public and then submit it as http://en.wikipedia.org/wiki/Affidavit with your statements.
You are treading legal waters here so this is about all you can do.
Bob
Legally speaking, can i prove when a page is published in internet and its content?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic