need some help

i downgraded to 1.1.1, cause i could get guitar hero, and now seeing that it was stupid can i get 1.1.4 back? or with my newly downgraded 1.1.1 it doesnt have like any of the apps in the installer as my 1.1.4, if i can fix that i wouldnt need to upgrade back, this time to get the installer i used jailbreakme.com insete of Ziphone so is that why? and i couldnt use ziphone cause 2.6 says only for 1.1.4 version

 

ok never mind i got 1.1.4 back on my ipod but! when i go into the installer it allways feezes and i have to restart any suggestons?