| How To Turn Off I.E.7's Tabbed Browsing
Although it has been a feature of Firefox for a long time, it took Microsoft a long time to catch on to tabbed browsing.
Anyway if you are a fan of the I.E.6 look and don’t want tabbed browsing, here’s how to turn it off.
Open I.E.7
Click on Tools then Internet Options
Click on Panel Tabs then Settings
Uncheck the option "Enable tabbed browsing"
Restart IE | 
