I own a sprint Touch Diamond.
I would like to upgrade it to 6.5. I already bricked a Touch and bought this Touch Diamond

This time I want to be carefull and seek your expert advice. I am following some threads to do it and ended up looking at this thread which shows lot of successfull people here.
Could anyone please walk me through the steps to upgrade it? The other thread there to upgrade is missing something I hope or I cannot follow it that screwed my Touch.
I cannot spend another $200

so I wanted to get an expert advice from you guys.
Your help is much appreciated.
Thanks,