In BOL for SQL 2K we read, that SORTED_DATA and SORTED_DATA_REORG clauses that existed in SQL Server 6.x are no longer supported in SQL 2K. Don't believe that, they are not just supported but even used by Maintenance Plan. Add Optimization step to your plan and query sysprocesses table when it runs - you'll see something like:
dbcc dbreindex(N'[dbo].[MyTable]', N'', 90, sorted_data_reorg)
But don't get used to it - in SQL 2K5 SORTED_DATA and SORTED_DATA_REORG clauses don't exist.