Save the files as TIFF files not NEF files. NEF gives you nothing special from a file scanner...
Problems is I got a lot of files from friend of mine who scan it years ago and put to archive.
I don't have scanner to rescan all of them (more then 200 files)
I just want to open it to "save as"
BTW - he has no problem opening it in CS4 or CS5.
Problem only with my CS2
I suspect (but don't know for sure) that you'll need to download a Nikon plug-in in order to open scanner NEFs into CS2.