Seems pretty straight forward -
download:
http://sourceforge.net/projects/rede...r.bz2/download
extract it: 'tar xjvf redeclipse_1.1_linux_bsd.tar.bz2'
install the prereqs: 'yum install SDL_image SDL_mixer'
change dir: 'cd redeclipse'
execute the start script: './redeclipse.sh'
cheers