Hello, I have yourtube officially purchased. And I have an iPhone 4. I haven't installed yourtube because it says that it doesn't support os 4.0 or the iPhone 4, I think. And yourtube 2, is a $1.00, upgrade. But when I click to purchase it, it says to install it. I click confirm but it won't install? So I am wondering can I use yourtube with my iPhone 4 on os 4.1? Should I install yourtube 1st and then purchase yourtube 2? Any help would be appreciated.