PartyGaming, which owns the PartyPoker.com online gambling site, said fourth quarter sales surged 32% from the year before and it remains confident about the full year outlook. The surge in sales was underpinned by its acquisitions Cashcade and World Poker Tour in 2009.Stripping out acquisitions, sales advanced 12% from the same time a year before after a particularly strong performance in casino and sports betting.PartyGaming added that it expects 'clean' 2009 EBITDA to be slightly ahead of the company's expectations. Chief executive Jim Ryan said: "With some of the world's largest gaming sites in poker, casino and bingo, and opportunities to further consolidate the online gaming sector, we are confident about our future prospects." The group, which bought WPT Enterprises in November last year, said there are opportunities to further consolidate the online gaming sector.PartyGaming is rumoured to be in talks with Austria's Bwin Interactive Entertainment.