How to see a list of all pages in Visio 2010?
Does this help:
Enabling the Developer Tab: Visio Options -> Customize Ribbon -> Customize the Ribbon -> Main Tabs -> Check “Developer” tree node (or check 'Run in developer mode' Advanced section)
Developer Tab should now be visible in Ribbon
Click "drawing explorer window"
You should see all tabs listed in Foreground pages, double clicking any page should take you to that page
Also, Just noticed this: Right click on the small forward backward buttons to the left of the page tabs(status bar) pops a list of the pages in the document :)