watch it on myp2p.eu
buy it
youtube
WWE On Demand
Yes. On www.wwe.com or www.youtube.com
You can watch normal events (Raw, NXT, Superstars and Smackdown) for free on WWE's websites (link under "Related Links" under this answer). Pay-Per-View events (like Royal Rumble, Elimination Chamber and WrestleMania) are not free. Those can be bought on the WWE website as well.
Unfortunately, you cannot watch Smackdown! OnDemand.
It depends on what year wrestlemania you are talking about and if it's 2010 wrestlemania then you'll just have to watch elimination chamber this Sunday to see
Batista returned Monday night on Raw to announce that he was going to Smackdown. He had his last match on Raw against Randy Orton in a No Holds Barred match that he won. Watch Smackdown this Friday because I'm sure he'll be there.
SYFY
Tune to the correct channel. Watch.
the winners were.... chris jericho-world heavy wieght batista-WWE(don't ask me, just watch it if you missed it and you'll find out) drew mcintyre-intercontinential the miz-US and that's about it