[CentOS] Are some CentOS package out of date compared to RH?

Mon Feb 14 16:28:04 UTC 2011
James Chase <james at wintercastle.net>

According to the RH5 Errata, the most recent package for 
scsi-target-utils is scsi-target-utils-1.0.8-0.el5.x86_64.rpm

However the latest update via yum on CentOS is labeled 

Additionally, the package info says it is not compatible with iSCSI yet, 
which is false! There were some critical updates for this package 
according to RedHat, so how can I be sure that I am at the correct 
version? In looking at some other packages on my CentOS system, like 
httpd, I am noticing they are also out of date in regards to Red Hat 
updates. Is this common?

Name       : scsi-target-utils
Arch       : x86_64
Version    : 0.0
Release    : 6.20091205snap.el5_5.3
Size       : 143 k
Repo       : updates
Summary    : The SCSI target daemon and utility programs
URL        : http://stgt.berlios.de
License    : GPLv2
Description: The SCSI target package contains the daemon and tools to 
setup a
            : SCSI targets. Currently, software iSCSI targets are supported.