Please forgive me if this is an ignorant question, but I honestly do not know how to resolve this issue. My Macbook took a tumble down the stairs, so I am currently using an older PC that I gave to my son for school projects and what not. My issue is, I logged into my developer account and downloaded the Itunes 10.5 b4 and the IOS 5 b4 to install it on my Iphone and the Itunes is up and running just fine, but the IOS is no where to be found after downloading it to the desktop. When I open up Itunes to restore with the new OS it isnt even an option. Also, if I try to open the file where I downloaded the OS, it will not even open. Could this be an issue cause by working with Windows XP? I never had this issue before with my Mac.....Thanks for your info in advance.