To do this in Internet Explorer 7
Open links in a new tab in the background.
Open links in a new tab in the foreground.
Ctrl+T or double-click an empty
Open a new tab in the foreground space on the tab row.
Ctrl+Tab or Ctrl+Shift+Tab
Switch between tabs.
CTRL+W or ALT+F4
Close current tab (or current window when there are no open tabs).
Open a new tab in the foreground from the Address bar.
Ctrl+n (where n is a number
Switch to a specific tab number between 1 and 8.
Switch to the last tab.
Close other tabs.
Open Quick Tabs (thumbnail view).