Root trouble unrooting

[ovdrumr]

Bought the Vibrant about a month ago. It came with 2.1. I upgraded to 2.2 through Kies. Then I rooted with superoneclick. Dumped all the bloatware but I am having problems and want to unroot. I tried with superoneclick and it says 'device does not have superuser'. I boot into recovery and it says someting about signature verification.
I have searched high and low here, at xda, and a few other android sites for a good fix...
I want to go back to 2.1 and I will then do the kies update to 2.2...
I am scared of bricking my phone. Any help will be appreciated...

 

[VegasTouch]

Everything you need should be in this post http://androidforums.com/1958763-post65.html.

The video is how to Odin back to stock 2.1 and the links are what you need to do it. The two links at the bopttom are of the needed PIT file and the Odin program.
You will also need this thread to get the actual ROM that is 2.1(JK6). It is on the first post. http://forum.xda-developers.com/showthread.php?t=857974