Reverting R/3 4.7 Enterprise SQL 2005 to SQL 2000

I would like to have some idea of the best process on how to revert my Sanbox SAP database server that is on SQL 2005 back to SQL 2000.

I had upgraded my Sanbox database server from SQL 2000 to SQL 2005 as a practice to move the whole landscape to SQL 2005, now my company wants me to move the Sanbox back to SQL 2000. I am not seeing how I can do this yet.

Your help will be greatly appreciated.