In order to manage and provision your client systems, you must first synchronize content from RHN's central servers to your Satellite.
RHN recommends that you sync at least the following channels:
Red Hat Network Tools for RHEL Server (v. 5 for 32-bit x86) — rhn-tools-rhel-i386-server-5
RHN Tools — rhn-tools-rhel-4-as-i386
Red Hat Enterprise Linux Server (v. 5 for 32-bit x86) — rhel-i386-server-5 (and all child channels)
Red Hat Enterprise Linux Server Virtualization (v. 5 for 32-bit x86) — rhel-i386-server-vt-5 (and all child channels)