Perhaps this device at creative.com (The link provided for you) or something similiar will do the trick for you.
It connects to a USB port. You have 2 on the right side of your laptop. The device has two RCA ports which should provide the connections you seek.
A device like this one or similiar should give you the best "Quality" audio transfer.
But if cost is more of an issue, you can find "Patch cables" at you local electronics store to go from RCA jacks to stereo headphone jack this will allow you to port the information in through your Microphone jack.
Hopefully this helped you,