I did managed it and did run one Fiat campaign in the Blitz version, so I can also confirm it is working in the Blitz. But pffff the included manual is rather useless.
Heinkill, Why not go for the JSGME mod swapping tool, no need for the extra Clod copy and so much simpler to install so nothing can go wrong.
Sorry just saw this. I think you are referring to the full Malta mod with desert textures, skins and map. There has been no work on that mod for several years and won't be as I have moved on in RL.
The much simpler Malta Campaign had about 28,000 downloads, and that was just a matter of dropping in the campaign briefing files and skins, so most people went with that one.
Fred