I am running 4.2.5 right now. I have run Greenpoison and the loader popped up, but it wont load. I have tried to restore, but I can't find the 4.2.5 IPSW anywhere! I also tried using tiny umbrella and restoring to 4.2.6, but it wouldnt work. I am totally stuck! If I cant jailbreak this version, can I selectively upgrade to maybe 4.2.6? Help me get Cydia please.