Hi - you can still search the old doctors forums on here:
http://www.medhelp.org/forums/HIV---Prevention/show/117
There isn't a way to narrow it down by timeframe, unfortunately. However, please note that no doctor on this site, and no doctor that we know of who is an expert in HIV transmission has changed their stance over the past few years. HIV has been a known virus for over 30 years now, and while the information about it has been consistently updated (mostly in regards to treatment), the way in which HIV is transmitted has been understood for many years. There aren't any "new ways" that HIV transmission has become known.