You will not be able to read the iso from an NTFS partition. Hard drive installations only work from ext2, ext3, or FAT file systems. Take a look at the Installing from a Hard Drive
section from the Red Hat 9 installation guide. The way you specified the partition that your iso's are on is also suspect. Your partition should read something like /dev/hda# (if you have IDE drives) where # is the number of the partition. For example, /dev/hda1 would be the first partition on hard drive a, the first hard drive. The hd1/dev specification will not make sense to Linux.