How can you put several home screens on the virgin mobile samsung intercept?

How do you add up to seven home screens on the samsung intercept?How can you put several home screens on the virgin mobile samsung intercept?i dont recommend having 7 home screens on the samsung intercept, it slows down the phone, but if you want to have 7 download launcher pro on the android market, it only cost a few dollars, once it downlaods go to menu, preferences, homescreen settings and then click number of screens and 7 should be at the bottem