Method Missing

OMG, I just nuked KSP, opened the folder, nuked the folder (left over after steam uninstall) and reinstalled and it still didn't work. Thankfully I came back here to look around a bit before complaining again. I installed ModuleManager from ckan as tiberinx said that fixed his issue and it fixed mine too! Please add installation instructions and at least indicate that this mod requires modulemanager to work!

I'm having a hard time using this mod, it doesn't appear to modify the tech tree on any game mode. There's no installation instruction. Experience with previous mods (pre 1.0 days, I'm back after a break) tells me to copy the gamedata folder into the KSP folder, overwriting/adding to what's there. I do, and it doesn't seem to have an effect. I downloaded CKAN in case I'm not getting something that I'm supposed to know already, and installed with that but again it doesn't seem to work. Is there any special setting, configuration, new game, scenario, magic incantation, or other trick to get this to work, or should it 'just work'? Maybe I should delete my entire KSP folder and reinstall from scratch?