Continuing an old modpack

I've been getting pretty bored on Minecraft recently, and remembered the first Modded Mayhem series me and my brother did. I decided to bring that back, and after about 45 minutes of looking for the world save and installing the mods, I got it back again. There were some changes to some of the mods, and I might not have got them all, so there were a few errors in the world. Most (but strangely, not all) the redstone engines disappeared, and the furnaces were gone. I also noticed that there were strange blocks in the quarry, including one that was missing it's texture. I probably won't be recording on it, though, because that is actually the reason I stopped the series in the first place. It was too much work, and I did not have the the time to edit the videos. I might post screenshots, though.