Indexing. If you worked on an index before October, 2001 you can use any thing on it except cause of death. If you are now indexing (Since October 2001) you can only include the field that I told you about. This means any indexing you did before October 2001 you can use what you extracted. Any indexing you have done since then you can only use the fields that I wrote. Sorry if there was any mix-up.