Can’t load my blog anymore after plugin install

I recently upgraded to 2.0.6 and my blog was working perfectly. However today I installed a plugin called-

WordPress Hide Dashboard Plugin from http://www.deepwave.net/articles/hide_dashboard/

The install went ok. However once I went to the blog home page it now comes up as being unreachable. I can still access the site just fine through the admin and all settings appear to be the same. When I edit a post I can see it in the edit window, but the preview window is unable to load the post.

I didnt see any changes made to the code and the problem is the same even when I change to the default theme.

I have uninstalled it and even deleted it from the plugin folder but it has not fixed the problem.

I assume the plugin somehow altered fields in the database but I need to know what to fix before I can fix it.

Is there anyone who knows what this thing did? The code is pretty simple for the plugin and I’ve listed it below.

Thanks

—————————–

Author: Patrick Khoo
Author URI: http://www.deepwave.net/
Version: 1.0
*/
/*
Introduction
Well, it hides the Dashboard for all non-Administrators, but
you can still get to the dashboard by URL on the Location bar 🙁
In any case, this just makes it a little easier for end-users..

Installation
1. Copy the file hide-dashboard.php to your WordPress plugins directory.
2. Login to WordPress as Administrator, go to Plugins and Activate it.
3. Login as a non-Administrator and you should immediately be redirected
to your account Profile page instead of the Dashboard

Release Date: 2007-01-05
Copyright (c) 2007 Patrick Khoo
*/

function dwpage_restrict_adminhead() {
global $submenu, $menu;

if(!current_user_can(‘level_10’)){
unset($menu[0]); // hide dashboard
unset($menu[35]); // hide Users or Profile
unset($submenu[‘profile.php’]);
}
}

function dwlogin_redirect($link) {
if(!current_user_can(‘level_10’)){
$link = preg_replace(“/Site Admin/”, “My Profile”, $link);
$link = preg_replace(“/\/wp-admin\//”,”/wp-admin/profile.php”,$link);
}
return $link;
}

add_action(‘admin_head’,’dwpage_restrict_adminhead’);
add_filter(‘register’, ‘dwlogin_redirect’);

?>