Set the Tabs in Microsoft Internet Explorer 7
When IE7 is installed, the default mode will not operate window tabs properly on this web site. To change the settings so that it works like other tabbed browsers, such as Firefox or Opera, change the settings under “Tools” in the menu. Select “Internet Options”, down the page under Tabs, click "Settings". Make sure at the top of the page "Enable Tabbed..." is checked. Down the page, click the radio button “Let Internet Explorer dedice how pop-ups should open.”. Close dialog box with “OK”. The tabs will operate in proper mode now.