If you're doing a lot of testing download the official Samsung update to 2.3.6 for admire, It has 100% working update (except MMS & Market needs a tweak for them to work)
:::>> You could download it from here
(just install the program connect the phone in odin mode and run)
you could find more info here
this is the fastest way to get your phone useable.
If you want to return to original stock see this topic