Thermohaline Conveyor

Hello everyone, I've just set-up and modified a forum through PHPBB and am looking to modify the script that tells the user when the last post was created on my forum. The current format reads 'last post' [b]Wed Jun 07, 2006 10:40 pm[/b] however i've been looking everywhere for a script i could use to change the format to: 1 minute ago, into hours 1 hour ago etc. into days 2 days ago into weeks, into months etc. Can anyone enlighten me on where i can get this script and how to modify it within the PHPBB environment. Any help will be much appreciated. [img src=\"style_emoticons/[#EMO_DIR#]/smile.gif\" style=\"vertical-align:middle\" emoid=\":smile:\" border=\"0\" alt=\"smile.gif\" /] A good example can be found here [a href=\"http://www.ubuntuforums.org/forumdisplay.php?f=77)\" target=\"_blank\"]Click Here[/a], note the last post 1 hour ago so on script, thats the script i need. My forum is at [a href=\"http://www.met-monkey.co.uk/weather.forum/index.php\" target=\"_blank\"]This Address[/a]