Happy to help! Any time you have questions, feel free to ask. As much as we all argue and debate things here, we're always ready to lend a hand too. And if you want you can send me a PM as well, if it's a question you don't want to ask in the forums for whatever reason. Always happy to help fans navigate the convoluted mess that is comic book history. I might not have the answers, but I bet I'll know someone who does.
And no, the Superman from Flashpoint is not New52 Superman, nor any other previous version. That was a version of Superman that existed only in the altered timeline of Flashpoint, and ceased to exist once Flash "fixed" reality. The Flashpoint world existed only for the duration of the miniseries (as well as a few tie-in mini's you don't need to read for the main story) and very little of it has "carried over" into the regular DCU. Flashpoint isn't an "era" in DC history so much as a brief period where Flash changed reality and then (more or less) fixed it.