How to add service packs and new OS versions to Satellite kickstart

Issue

Need steps to add new RHEL 5 service packs into RHN Satellite 5.2 configurations, as well as add the same changes into PXE on the same server.  Once the new service pack is synchronized via satellite-sync -c "channel_name", then eack kickstart config needs updating leverage the new service pack.  Once that's done, the PXE configuraton needs updating and from testing, pxeos -m "existing pxe config name" doesn't work.  What does work is deleting the target pxe config via pxeos -d "existing pxe config name", then re-add it via pxeos -a "new pxe config name".