Audio help

Hey guys,
I need some help connecting my new audioset. I recently obtained a Logitech X-530 set for my laptop. I use a HP Pavillion dv5000 series.
Problem is, that my Logitech set is a 5.1 set. This set has 3 different plugs to connect (black, green and pink). My laptop however, only has 1 line-out jack for my headset.
I know I'll need an external soundcard (or something like that) to be able to connect the two. Does anyone know what I'll need or what I need to do?
At the shop they told gave me a Creative Xmod (which is connected by USB), it only has one line-out jack...
I need some help connecting my new audioset. I recently obtained a Logitech X-530 set for my laptop. I use a HP Pavillion dv5000 series.
Problem is, that my Logitech set is a 5.1 set. This set has 3 different plugs to connect (black, green and pink). My laptop however, only has 1 line-out jack for my headset.
I know I'll need an external soundcard (or something like that) to be able to connect the two. Does anyone know what I'll need or what I need to do?
At the shop they told gave me a Creative Xmod (which is connected by USB), it only has one line-out jack...