On neither of the 2 CD-ROM's is there any support for libc5. Legacy applications (like WordPerfect 8) need libc5 support. Can future versions keep the require legacy files. (being: libc-5.3.12-31 and ld_so-1.9.5-13)
This is by design. Old compability stuff is kept along just for so long. Just grab those from RHL 6.2 if you need them. Perhaps this will force the vendors to actually redo the binaries once in 5 years. *** This bug has been marked as a duplicate of 15775 ***