Quote: "I had to rename them to try them.The problem is that there appear to drag and drop them on the map,only a green or red light, but no objects (objects are vehicles)."
That means the .fpe can not find the .x model.
This usually happens with anything made in cyrilic, chinese or japanese fonts because a western font based PC cannot read them properly.
There is no easy solution so I would just forget about it.
If you need industrial models I recommend to visit the (German) site of Lafette. He's a great asset creator from the German FPSC forums: http://mogelpackung.de.to/
Edit: On the homepage you have to ring the bell below the picture and then click "Workshop News" to get to the downloads. You have to register now to download anything but trust me, his stuff is top quality and totally worth it.
In case you find my grammar and spelling weird ---&amp;gt; native German speaker ^^