Replace and Upgrade Creative sound card

Windows XP SP2 on Dell Dimension Pentium IV.
Recently had a Creative SoundBlaster Live sound card fail, decided to replace card with Creative X-FI XtremeAudio. I probably should uninstall the older stuff first but I have a lot of Creative stuff on the computer, sound card, all the original Creative software and 2 different Creative MP3 players with play P4S, and whatever drivers have been installed.
What process should I follow for replacing a sound card, and how can I determine which audio drivers to remove without removing the P4S drivers?