You were speaking of this you posted right>?
updating from a lower than 3.1.2 FW
If you have an iphone firmware of below 3.1.2 I would suggest updating to 3.1.2 (various bug fixes and a few improvements) and jailbreaking/unlocking it. Use the following process, but be very careful not to update to 3.1.3 or you're fu$%^ed.
downlaod the update for 3.1.2 from here.u
http://appldnld.apple.com.edgesuite....1_Restore.ipsw
I downloaded that... is the ipsw file that i browse for in snowbreeze in this zip file some place?