Changes
yum-fastest mirror requires yum and yum requires yum-fastestmirror, using --nodeps resolves this circular reference
rpm -Uvh http://mirror.centos.org/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-3.el5.centos.x86_64.rpm
rpm -Uvh http://mirror.centos.org/centos/5/os/x86_64/CentOS/python-iniparse-0.2.3-4.el5.noarch.rpm
rpm --nodeps -Uvh http://mirror.centos.org/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-14.el5.centos.1.noarch.rpm
rpm -Uvh http://mirror.centos.org/centos/5/os/x86_64/CentOS/yum-3.2.22-26.el5.centos.noarch.rpm
yum -y update