Akamaru
Will Pull Through
That shit was way too long for me to read, but neither Tseng nor Rufus died. Tseng was only injured in the original translation. Rufus was "missing."
As for Genesis, so far, I'm not seeing anything that's contradictory. Perhaps the contradictions only exist because you don't like the stories enough to explore them?
In any case, "original" is a tricky label. How do you judge that?
I judge it by reading very long pieces of text around the Internet so I can research and actually be sure of what I say =D
Alas, not everybody is actually capable to sit through reading a piece of text for five minutes, and that's well... fine. In their own way, it's fine.
As for Genesis, so far you really have to read more on that and try to use some reasoning.
Maybe you can find it totally fine that Genesis would not give two shits about anything for 8 years all the while everything that happens in Final Fantasy VII and Advent Children take place.
But then again, you'd have to read long pieces of text, and I obviously wouldn't ask you of this lol.