Leopard to Lion and only one small problem

Just spent a day mucking about upgrading 3 machines from Leopard to Snow leopard to Lion...all went perfectly and everything works..only issue I have found is on one machine 3 items are duplicated..in Launchpad there are 2 versions of numbers, keynote & pages...one is a 2008 and the other 2009 version.. question is how do I remove the older version of each or am I better off waiting for the 2012 versions and doing it then??

thanks

ok did it....

...Finder....GO....iworks 08...send to trash...