[Plugin: Contact Form 7 to Database Extension] Version compatibility list?

I realize that we are still using an older version of WordPress, however I wonder if there is a version of Database Extension that is compatible with WP 2.8.4 – if so, which one? I see the page to download previous versions, and the change log, but no notation on which versions are compatible. Any assistance would be appreciated.

http://wordpress.org/extend/plugins/contact-form-7-to-database-extension/