Hello there! Not many questions about how SQL Full Text Indexing (FTI) is implemented, so I am glad you asked. And, for anyone that doesn't know, FTI in SQL 2008 is vastly improved over 2005 and worth a second look. The code in [Console]\Program.cs, and the database table cfg.Configuration instructs...
If you don't have LUKE, check this out: http://arachnode.net/forums/p/195/9979.aspx#9979