16 Oct
2009
16 Oct
'09
9:35 a.m.
http://mirror.switch.ch/ftp/mirror/centos/5.3/os/SRPMS/
There are SRPM's there. If that's what you mean.
I believe CentOS still uses Plague (internally)
I found this mail on the dev mailing list:
[CentOS-devel] CentOS 5 build scripts http://lists.centos.org/pipermail/centos-devel/2007-May/001765.html
Build scripts seem to be private because of login/passwords etc.