The first thing you’ll have to do is get your Google Calendar iCal link.
Just open your Google Calendar and go to prefs \ Calendar.
Pick the calendar you want to sync with Outlook.
Now in the Private Address field choose the ICAL button.
This will show you your private Calendar address.
Copy this address to the clipboard.
Now open Outlook and go to Tools \ Account parameters.
You then get to the subscriptions screen.
That is all there is to it!
Now I can view my Google Calendar side by side with my personal or work calendar!