They took it off because they lost the rights to it. Dude, there's a sticky all about it. In fact there's a Sticky all about it, but I'm guessing you didn't read it.
Cartoon Network won't be able to do anything for you; they're too focused on Star Wars and DeathNote. If you want Sailor Moon remotely near American networking, you'll have to contact TV Asahi and Toei Animation about allowing the rights to be bought once more. Then you'll have to contact Tokyopop or DiC or Viacom to buy the rights. And that's if Toei allows it.
Noble effort. But I think it's futile.
EDIT: I may sound pissy in this, but that's because I am. I've seen alot of hopes being brought up and then crash and burn because of false rumors and inept attempts to bring it back. Seriously, unless CN specifically told you to get a petition or donation, cut this short. I'm hoping a mod will.