Hi all. I need working tool for export grayscale bmp heightmaps to adt.

I found a few tools, but not one of them not work how it is necessary:
Noggit - very good editor, but he not use heightmaps
Taliis - not bad tool, but long time not updated, and heightmap operations is broken
FuTa - importexport height work fine, but use custom file format .height

Whether there is tool that can correctly import | export them?
Or how i can convert FuTa .height files to editable bmp or png?

In addition, to a request "futa", Google advises sorts of nasty things