The Tides Tables are included in the .img file you downloaded.
Where do you install the chart?
On Oregon you have two maps to activate when you install one g2 vision. When you activate both of them you can see the tides tables too.
With the old charts (2008.5 etc.) it was not possible to see the nautic chart plus the tides information with HomePort, now you can see them both!
Just look for the little square with the T inside.