Provided as-is. Any questions one of us will try and point in the right direction.
Edit: For the moment, these are Windows 64-bit or Windows 32-bit only.
WorldEd -> create bitmaps for terrain -> BMPtoTMX -> drag drop cells into world grid
BuildingEd -> make buildings
WorldEd -> place buildings in world
TileZed -> do detailing around building that couldn't be done in building ed. Put fancy stuff around map to add detail to roads etc.
WorldEd -> Drag selection - Export to Lots -> add offset to put your world in correct place in game world then export. Muldraugh is 25x25 offset, Westpoint is 25x15. For now overwrite files. Will get maps working with modloader file system so your mod can override areas of the map.
You need to make all buildings in BuildingEd for the loot and future NPCs/Sadistic AI to work, as well as needing to use the new tiles (had to remove the old to fit in memory on the integrated gfx) so I'm afraid this means stuff will need making from scratch, but buildingEd is nice to use so hopefully that process won't take that long
Goes without saying all credit for these tools goes to EasyPickins who has done some amazeballs stuff and all credit for tiles to Mash who has equally done amazeballs stuff, and all credit for the terrain stuff goes to Binky who has yeah you get the picture
Edit from Moderators
Back in February 2013(!) hummer and fish-tank owner mendonca recorded a video of him using the tools to build a prison. I'm not sure how it compares to using these updated tools, but it may be a good place to start if you're looking to get going:
I'm here to give an info on how to get the blends working correctly!
It's the same as with the rules.txt, you have to get the blends.txt file from the ZomboidMapTools1_1.zip (it's in tools/TileZed/WorldEd) and overwrite the one that comes with the 32 or 64 bit version.