Per many sources on the net - SP1 for Small Business Server 2003 has been released.
Small Business Server 2003 SP1 Released
Alert - Archived Data
Please note that the old Network Blog content (from http://www.networkblog.net) is included for historic purposes only. Much of this data is either no longer relevant or may be missing from the original source. Most of this data was back from my MVP age and is over ten years old. Thus, many of the links are no longer valid as Microsoft has changed the links on many of their Technet sites.