[Help] Pathfinder for isometric tiled game engine

[polymaker]

Hi, I am currently making an isometric tiled game based on the mmorpg Dofus in AS2. My grid creator algorithm is done and work well. Now I'm trying to create a pathfinder for it, but this type of grid has an unusual order (see the second picture).
Normal Grid:

My isometric grid:


I already worked with a pathfinder with normal tiled grid using pre-made code. I have attempted to create one for my grid type but it was a failure. I also tried to adapt an existing pathfinder code to my grid but I failed to make it work.

please help!

Edited: now pictures works!