Maybe I'm missing something obvious here, but on my Win2k system I can mount any partition I want on any (NTFS) directory, just like you can mount filesystems on directories in Unix. So just make your C: drive NTFS, mount the other partitions, and forget about the C: if you want Unix-style paths.
This is exactly what I did here, but later I was forced to dismount the CD-ROM unit and the burner, because Nero 5.5 was not compatible with mounted devices.