I found in another topic similar problem as my, where somebody wrote that for FAT partition ktorrent will not use simlink.
OK, I moved the file to my /home folder and tried to import from there.
The result:

"Several data files of the torrent "Szarnyat vagy combjat" are missing, do you want to recreate them, or do you want to not download them ?"

If I choose not to dowload them, it ill be in my upload panel but with zero size.
If I choose to recreate theme, :
"Cannot recreate missing files : Cannot create /home/gini/movie/Szarnyat vagy combjat/Szarnyat vagy a combjat.avi/Szarnyat vagy a combjat.avi: Not a directory" and write in the download panel the name Szarnyat vagy combjat then status: "Error: Data files are missing".

Did you select the right location ?

For single file torrents you need to select the file itself, for multifile torrents you need to select the toplevel directory of the torrent.

Finally, I created a new partition with the rights of the user and I moved there the files and I can upload them.
Thanks!