Orochimaru's Edo Tensei summoning technique

[ovendoor.livejournal.com]

Hey i have a question about episode 69 of naruto.


I felt like re-watching Naruto today since i no longer have school for 2 weeks FWAHAHAHA.
But yes, back to the point.
It's right at the beginning of Orochimaru's and Sandaime's fight, when Orochimaru summons the first 2 hokgage's.
My question is, Orochimaru is about to summon the 3rd Hokage, but sandaime stops it. The translation in the subtitles says Kuchiyose, Edo Tensei means Summoning, Reincarnation to the impure world- if Orochimaru had summoned the 3rd hokage which technically isn't possible since he's still alive, would it have been like a copy of him? Or...would it have been sandaime in a past life?

nvm, it's all good.

-Duckie