CentOS 5 :: Mirroring With Rsync - Error "unknown Module"

Using mrepo, i'm trying to pull down centos 5.6 updates from a mirror (say, mirrors.kernel.org or mirrors.usc.edu). i want to use rsync to do this so i can try to exclude packages i don't need on my servers (e.g. firefox, openoffice). when i try this, i get the error "@ERROR: Unknown module '5.6'".

The following rsync command is what mrepo uses when i run "mrepo -ugvvvv":

When i run that, i get the unknown module error.

But what i don't understand about that error is, sniffing out the rsync server's modules on the commandline shows me that module (and path?) should work. like so:

Anyone know what i'm doing wrong when trying to pull this mirror down via mrepo? (or even that long rsync command)