hi i m in need of serious help...i have got a ipod touch...1.1.4...i jail breaked my ipod touch through the latest ziphone tool...but what i m lookin now is to upgrade it to 2.1 so tht i can also use .ipa files on it...i want to knw the best way to upgrade its firmware..i searched for it a lot on the net but was not able to get a guide which has got all steps crystal clear...i would b very thankful to all u guys if u could direct me to a link or post a guide here...i have read the forums even here and that is how i jailbreaked my ipod touch...plzzz i m in need of some serious helpppp...

How about Itunes...?