search tokenization inadequate

This module can only do full string searchs, which seems an unnecessary restriction. Finding partial strings strikes me as a necessary addition.

example: searching for 'drupal' cannot now find users named "Chris Drupal" or emails like "drupal@gmail.com" or even "user@drupal.org" which strikes me as a basic level of required functionalility.

Also, it forgets the radio button settings every time, which is very annoying. the 'site user list' module has better search which could be emulated here (though still has some tokenization problems). Perhaps these modules can be merged?