I dont believe you can. Creative's cards usually dont come with headers for use with case audio connectors, so you have to use either just the back ports, or fork out the extra money for one of Creative's external I/O panels.
In case anyone is wondering, here is what his soundcard looks like (if your talking about the one in your sig):
Oh...whoops...didn't realize you had that card... Hehe, there's probably some front pannel that connects into that white connector, but not the standard.