Oh man. So near and so far...
Got as far as step 4 in the middle esction (insert battery with key combo) and nothing happened. Now the phone isn't detected at all, and I don't seem to have anything under USB called Samsung... at all.
And started again from the beginning and windows won't detect... sigh
Frustrating. I feel there must be some way of getting there. My phone is showing signs of life, but I just can't get windows to talk to it.