I have a THX speaker system set-up now out of my computer, so no stereo amp. Like I said, I'm a total idiot when it comes down to technical terms. I can take my creative card and probably put it in my new computer, but since this card is 7+ years old, I thought I would upgrade with a newer card. The new computer will have a Realtek audio set-up butI really don't know too much about it.
What kind of new computer? (make and model) (desktop or laptop)
What model Creative sound card do you have now?
Your old soundcard may not work in your new computer. The new computer may not have the same interface as the old computer. The soundcard may not have drivers that work in the new computer's operating system.
Many computers don't have slots for a Pci or Pcie soundcard. USB Dacs are far more common now. (Mostly 2 channel.)
If you want to have a multi-channel setup that greatly affects your choices for a soundcard.
Details matter and you need to supply more details about what you have and what you want.