I am trying to install vsftp on redhat 5.8. I get to this point but the install quits before installing, Any suggestions appreciated?

vsftpd x86_64 2.0.5-24.el5 /vsftpd-2.0.5-24.el5.x86_64 286 k

Transaction Summary
================================================================================
Install 1 Package(s)
Upgrade 0 Package(s)

Total size: 286 k
Is this ok [y/N]: y
Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 37017186


Public key for vsftpd-2.0.5-24.el5.x86_64.rpm is not installed
before installing packages?

this is the OLD rhel5 ( and the old 5.8 )

you are paying redhat a lot of cash every year to LOCK this at rhel5.8 instead of upgrading to rhel5.10


contact redhat tech support
you are paying for it in the required support contract


will install "vsftpd"
it is in the RHN repo that you have access to with the support contract