[kamitsuna]

the post i just gave was what i used to fix my half rooted problem. I have had zero problems flashing multiple froyo roms. Unrooting your phone, then flashing unrootable froyo probably is not the optimal way handle your problem.

Just follow the above link, wipe your sd card, follow the guide exactly. Only put the files from the guide on your sd card. If there is further confusion....your screwed?

Half assing the root or (half assing your research prior to root) is how we got ourselves into this mess in the first place. There is no simple cure. Just take 20 minutes to read over the guide. Take another 20 minutes to follow the guide. Be thorough. It will work.