BANDWIDTH-RPMS.tgz
contains the following rpms...
This should provide  Bandwidth Limits in the 
  Site Management Site Services Web

I don't know if it is effective, but... user beware.
We make no claims and accept no responsibility for use of these rpms.
See USE below for install.
If you have problems noticy gwaugh@frontstreetnetworks.com
We will try and fix it...

base-apache-bandwidth-capstone-1.0.0-0BQ2.centos4.noarch.rpm
base-apache-bandwidth-glue-1.0.0-0BQ2.centos4.noarch.rpm
base-apache-bandwidth-locale-en-1.0.0-0BQ2.centos4.noarch.rpm
base-apache-bandwidth-locale-ja-1.0.0-0BQ2.centos4.noarch.rpm
base-apache-bandwidth-ui-1.0.0-0BQ2.centos4.noarch.rpm
base-bandwidth-capstone-1.0-47BQ1.centos4.noarch.rpm
base-bandwidth-glue-1.0-47BQ1.centos4.noarch.rpm
base-bandwidth-locale-en-1.0-47BQ1.centos4.noarch.rpm
base-bandwidth-locale-ja-1.0-47BQ1.centos4.noarch.rpm
base-bandwidth-ui-1.0-47BQ1.centos4.noarch.rpm
install.sh
mod_cband-0.9.7.2-3.centos4.i386.rpm

USE:
  wget http://fsn.raqware.com/Strongbolt/BANDWIDTH-RPMS.tgz
  tar -xzpsvf  BANDWIDTH-RPMS.tgz
  cd  BANDWIDTH-RPMS
  ./install.sh