I am using Redsn0w 0.9.6rc16 and I have an iPhone 3G 8GB using 4.2.1 my baseband is 05.15.04 and I'm trying to upgrade to the iPad 06.15.00 baseband so I can do an unlock (I already know all the risks involved) but I'm still stuck with this problem of redsn0w crashing on me when resn0w is trying to fetch the iPad baseband data from apple. I also tried using the appserv and change the hosts file with no success either. I also made sure that my .net architecture was up-to-date. I started with my Windows 7 64-bit home edition computer, and then went to my Windows XP computer and got the exact same result. I also tried the compatibility settings on both machines with no success. Please help anyone!