CANT FIND ATV2 jailbreak download

Hi, i have just purchased my second atv2. (720p HD-60Hz) 5.1.1(5433). I immediately saved shsh blobs and created ipsw via ifaith, which i saved onto my windows7 desktop. I now want to jailbreak it, but when i download seasonpass it is for the tethered jailbreak not untethered jailbreak. I opened up seasonpass and right clicked on create ipsw after connecting my atv2 to my pc. I then selected 5.1.1 but get a message saying(the atv is not eligible for this version). Where can i find the jailbreak for my atv2 please help,