Zalman Theatre6 5.1 headphones question

[masshass81]

I have not been using these headphones since everytime I want to use them, I would always have to unhook my speakers, then plug the headphones in (3 jacks: front, rear, and center). pic

I was wondering if I would be able to easily hook up these headphones through the front of my comp like via the I/O panel that comes with the Audigy 2 ZS Plat or Pro. Or if there is another way, please let me know. Otherwise, I think I will just sell these...