Just went thru his feedback to see what he's been buying and selling lately. It looks like the guy bought the phone this past August from his brother in the following auction.
http://cgi.ebay.com/ws/eBayISAPI.dll...m=130142248507
Maybe it was the brother who loaded the custom ROM since the picts of the 6700's today screens look nearly identical in both the august auction and the current one.