Very beta, but it works:
http://www.johnsample.com/misc/geo2/TIGERInstall.05.zip
The downloads point to the new 2004 second edition files.
The parser operates differently for MySQL and MSSQL, so if you want both versions you must re-parse before installing to a new platform.
All the old MSSQL functions should still work with the exception that there is no support for county/state wide searches, I may add them back in with a patch.
The MySql installer does not run the install scripts for you. You must copy and paste it from the last screen into sometihng else, like SQLyog.
You must use the MyISAM engine. It may work in InnoDB, but I let the indexing run for a day when I tried it and it still wasn't finished.
The MyISAM engine does it in about an hour.
The interface DLL will be up within the next day.