Ok, that's better. Now we know where you're standing. But I'm not experienced on Mandriva, so I can only give some general advice.
First of all, the error message says "File or Folder /mnt/win_c does not exist". So did you confirm that the folder /mnt/win_c exists? If not, try creating it first.
To get full NTFS write support you need to use the ntfs-3g driver, as the basic driver is only safe for read support. Here's a tutorial
for setting it up in Mandriva. It's a couple of years old, but it's probably still mostly applicable. There's always google if you need more info.