Hi,
it seems that you have removed the stage2.img files and most of the RPM's from the non-final releases, see below. I.E. the 4.5, 5.2 stage2.img and RPM's files are missing on the majority of mirrors. Can you please confirm this issue? Is this intended?
[07:31:32] nas1:/storage/www/centos# find . -iname "stage2.img" ./2.1/final/i386/CentOS/base/stage2.img ./5.2/os/i386/images/stage2.img ./4.7/os/s390x/CentOS/base/stage2.img ./4.7/os/i386/CentOS/base/stage2.img ./4.7/os/x86_64/CentOS/base/stage2.img ./4.7/os/alpha/CentOS/base/stage2.img ./4.7/os/ia64/CentOS/base/stage2.img ./4.7/os/s390/CentOS/base/stage2.img ./5.3/os/i386/images/stage2.img ./5.3/os/x86_64/images/stage2.img ./3.9/os/s390x/RedHat/base/stage2.img ./3.9/os/i386/RedHat/base/stage2.img ./3.9/os/x86_64/RedHat/base/stage2.img ./3.9/os/ia64/RedHat/base/stage2.img ./3.9/os/s390/RedHat/base/stage2.img [07:31:34] nas1:/storage/www/centos#
[07:36:02] nas1:/storage/www/centos# find 5.2/ -iname "*.rpm" | wc -l 1002 [07:36:09] nas1:/storage/www/centos# find 5.3/ -iname "*.rpm" | wc -l 9020 [07:36:12] nas1:/storage/www/centos# find 4.5/ -iname "*.rpm" | wc -l 0 [07:36:17] nas1:/storage/www/centos# find 4.7/ -iname "*.rpm" | wc -l 13737 [07:36:20] nas1:/storage/www/centos#