Having totally missed the first reincarnation (bar at the left & too wide for the page) & come in towards the end of the tweaking, I have to say I quite like it - except that it would be nice to have the thread titles on Last hour/15 mins etc in bold so it's easier to distinguish them from the posters names.
btw is last 15 mins new - don't remember it before & think it's a good compromise between active convos which could disappear off the bottom really quickly & last hour which could get very long.
And nice to see the festive smileys back