As far as I know, no other person/team ever fixed the set. There are many combo haks out there that include the orgiinal, and it IS possible that someone actually did some repairs, but when CTP was working on this set, we could find nothing more up-to-date than the JDA version.
WE actually went through and repaired the set multiple times, as our knowledge of the bugs increased. The first pass, no one was paying attention to the fact that JDA had used a type 7 face for the walls. This makes them non-walkable, but allows you to shoot magic and arrows etc, directly through an entire area created with the set, since nothing blocks the shots.
CTP went back in and repaired all of those, and this was not simply a global replacement of the walkmesh face types from 7 to 2. Since there ARE sections where a type 7 was required and a type 2 would not work. So each tile was manually edited and fixed for the wall faces.
Many, and in hundreds of other bugs were repaired as well.
Since new tiles were added to the set, and since CTP never overwrites originals, we renamed the tiles internally to prevent it from causing crashes to mods that used the original JDA version.
This means that it is not a direct replacement, but a completely new tileset, and you would have to re-create any areas if you wished to use the CTP version.
There are utilities out there that could likely rename the tiles used in a specific area from the JDA set to switch over to the CTP version, but it would still require manual checking and likely a tile here and there would not be what was expected due to the renames etc.
It would be much faster to just recreate the areas needed.