take a look here :-

Code: 
http://www.litespeedtech.com/support/wiki/doku.php?id=litespeed_wiki:php:lsapi_ubuntu_debian
bhanuprasad1981 Reviewed by bhanuprasad1981 on . Please Help Me With LiteSpeed Installation! Hello To KWWH, I Am A Newbie To Linux and I am Going to Clean Install Everything On My Server So, I Would Like To Install LiteSpeed The Standard Edition On My Server. But, I Do Not Know How To Do So... :( I Would Like To Request Any Of You To Please Provide Me A Clean Step-by-Step Installation On Cent OS 5 If Possible! Thank You Rating: 5