I had to modify this plugin to work with WordPress 2.9.2
Remove or comment this code:
/* function wp_user_defaults_menu() {
add_options_page('Default User Settings','Default User Settings',10,__FILE__,'wp_user_defaults_options');
} */
Modify the function wp_user_defaults_add_pages by replacing the function call at the very end ‘wp_user_defaults_menu’ with ‘wp_user_defaults_options’:
function wp_user_defaults_add_pages() {
add_submenu_page('users.php','Default Settings','Default Settings','administrator','wp-user-defaults','wp_user_defaults_options');
}
Now it works!