Sami, you can try this in your .htaccess file.
>RewriteEngine on
RewriteCond %{HTTP_HOST} !^your-domain\.com [NC]
RewriteRule ^/(.*) http://your-domain.com/$1 [L,R=permanent]
I'll have to check it out too. I've been using Logmein which is also free (non-commercial use) but you have to be on the actual computer you want to access at least once to set it up. They have other pay options which make it so you don't have too.
Try downloading the file again using this link.
Then configure the script as stated in this thread.
Since you are not putting it in your public_html folder did you remember to add the require_once line to your config.php file?