Yep, the backports for the new Compiz and Compiz Fusion releases have hit the 2008 repositories. If you want to use it on 2008, just set up your backports repositories - go to the repository configuration tool and enable them - then update the appropriate packages (compiz, libcompizconfig, compiz-bcop, compiz-fusion-plugins-main, compizconfig-python, compiz-fusion-plugins-extra, ccsm).