You can save Tab Groups to the Favorites menu
When you click the small tab, a blank page will appear in Internet Explorer 7. You can then fill in the Address box to open another site in that tab. You can also right-click on any link on a Web page and select the Open in New Tab item from the pop-up menu. Of course, you can open as many tabs as you want; however, I'm sure that there is some limit to the number of tabs you can have open at one time.
If you regularly open the same set of sites on multiple tabs, you can take advantage of the Tab Group feature. This feature allows you to save your set of tabs as a group on the Favorites menu. To do so, you click the Add To Favorites (" ") button just left of the first tab and select the Add Tab Group to Favorites command, as shown above. Then later you can quickly open all of the sites by selecting the Tab group from the Favorites menu.