Different mods add different versions of the ores.
True, but I also noticed that recipes that use tin are compatible with all versions of tin (Ex. an RT battery can contain a combination of classic tin and lite tin). Also, while the lite tin is typically mined, I found the classic tin in a dungeon.
No
It exchanges items, kind of like a shop. Diamonds are worth 8126, stone is worth 1. Yo ucoul trade 1 diamonds for 8126 stone, ect.
Also, what's cool about the condenser is that it could reduce the hassle of creating some items (Ex. Bronze, Glass, Dark/Red Matter, etc.)
Edit: My adventure's coming along well (Got my fishing machine up and running). However, I did notice one small change in the world anchor recipe - it calls for two obsidian and one ender pearl rather than three obsidian now. Also, in order to keep chunks generating, it requires ender pearls. (Each ender pearl anchors the chunks for twelve hours.