Enable mack book pro to sync with Google contact

I wanted to sync my address book with google contacts in my gmail account


I didnt have IPhone so i I found following tutorial helpful:
http://www.zaphu.com/2008/05/29/how-to-enable-mac-address-book-syncing-with-googles-gmail-contacts-without-an-iphone-or-mac/

Also i dont have have ipod (yes its true)

so need to create a file in library/preferences with contents mentioned in the link

http://forums.macosxhints.com/showthread.php?t=90231