Cannot create ID file guest_id.txt in \WP-02-02-DAGD . Pleas

Help me setup this thing at web server

# base url to all guestbook files without trailing "/"
$bookurl = "/dagupan/wwwroot/guestbook/book/";

# base directory to all guestbook files from the server root without trailing "/"
$base_dir = "\\WP-02-02-DAG\D$\ ";

This should look more like:

# base url to all guestbook files without trailing "/"
$bookurl = "http://www.your_domain.com/guestbook/book";
They say enter "URL"

I'm not sure about this.
# base directory to all guestbook files from the server root without trailing "/"
$base_dir = "/dagupan/wwwroot/guestbook/book";