however the ntfs-3g is NOT installed by default
search the red hat knowledge base
the instructions ARE in there
search for "mount ntfs"
your RHN access username and password WILL be required to read the install instructions.
PS. if this is RHEL 5.0,5.1 or 5.2,or 5.3 there is a kernel bug that REQUIRES a special version to be installed
from a special repo and using special instructions
this was fixed in rhel 5.4 and up