On page
http://www.phpbb.com/mods/db/index.php?i=browse&mode=search

When i do the search with below criteria ...

Modification Name: [blank]
Category: Security [selected]
Complexity : [no selection]
Time : [no selection]
phpBB Version : phpBB 3.0.x [select]

Problem : Search output contains mods from 2.0.x version

Screenshot: http://img504.imageshack.us/img504/5148/phpbbsearchreportpe9.png