If I've overlooked this issue addressed elsewhere on the forums, I apologize. I have not found this issue when browsing the other forum topics. I've recently been promoted to a Systems Administrator at the company I work for and being our only Apple support guy, I am kind of the primary support for an XServe that our Marketing department has. I have been trying to get things up to snuff on the server, being that it really hasn't had any attention paid to it since it was purchased about 2 or more years ago. It's an XServe with 5 TB XServe RAID attached. It is currently running OS 10.4.11 with all updates applied. I am trying to get the Software Update service working correctly. I had a network engineer open 63000 for the server. I also had the admin of our Web Filtering solution monitor as I attempted to get updates and unblock any Internet requests that were going back to Apple's software update web address. I can get some updates, but the server only shows 10.4.x updates, it isn't showing me updates for Mac OS 10.5 client desktops. Will the Software Update Service in Tiger Server only download Tiger updates? Looks like it shouldn't care because it is just hosting them for the clients to download them.