[CentOS-mirror] Set up New Mirror

[support at bluethundercomputers.net]

To whom it may concern:
I set up a mirror for centos but I am not sure if I did it right.
the address is http://mirror.bluethundercomputers.net/centos

I set up cron to update every 4 hours dont know if this is to much or not.
Or should I set it to every 6 hours instead??
The cron I set is: rsync -aqzH --delete us-msync.centos.org::CentOS
/home/bluethun/public_html/mirror/centos

I did put the files in there but some of them are empty along with it only
going up to centos 3.
Is this all I had to do and the system will update over time??
Did I miss a step??

Any help you can give I would be greatful.
Also how do I set it up to be ftp and rsyc??
I want it to be listed in the mirror list thanks again.
Jeffrey Palladino
http://bluethundercomputers.net