Q: Please Help! Itunes Store won't open... just a white screen...

So... after spending a couple days first trying to get itunes updated to the latest version miraculously I managed to find a way to install it... Aweso- wait... why won't my Itunes store open? In all seriousness, For some reason whenever I try to access the Itunes store the loading bar appears, fills up to about halfway, then disappears but all that is there is a blank, white area where everything should be... Sometimes an back arrow will light up when I should be in the Itunes store, so I click it and get slammed with an error message- unknown error occure (-1202). I tried uninstalling and reinstalling itunes, that didn't work; I tried the parental controls trick with iTunes U, that didn't work; I tried praying to the computer and screaming at the computer and, of course, that did not work. I have no idea what to do to access the  iTunes Store which is freaking me out because there are a couple songs I've must have before next Sunday for a dance show so this has been driving me crazy. If anyone knows of a solution please respond because panic mode is activating right now. My OS is Windows 7 if that means anything important...