theme from different version



totally new to elgg, been looking at others out there such as dolphin etc but really poor community and support.


anyway i am trying to get into elgg and some plugins are awesome, the one thing i am struggling to find is a nice theme for the latest versions.


i have found one theme on the net that i like however it is for 1.1


can anyone tell me what version it will work in up to i.e. did each version change the theme layouts so they will not work?


i downloaded 1.5 and installed it however it has knocked it out, i really want to get the theme in to a newer version if possible rather than run on an older version as i cannot see any other plugins for 1.1


if anyone could help me i would appeciate any docs on or advice on how to upgrade the theme if possible at all?