well, the AW npc's shouldn't be there? but as for the frog...that was it, though you should have gotten the hype horn as a reward...that was a gag quest is all fairness
Well, at the very least you would need to download the extra content packs as they had all of the additional areas for the world. Issue is though in 2 years a lot changed so you may need to start from a fresh map.
well again, it sounds like you are missing the added content packs, and with the changed over time it would be best to just start from a fresh map
If you are outside of the pre-built areas, you should be able to simply paste the download over the existing map without any issue
if you are referring to the menu download, that is in your saves folder
Try this direct link:
http://repository.a2g.gs/modpacks/tolkiencraft/2/map-complete.zip