The answer to that one is simple. When going for any updates always read the information which shows this for the first with the Vista only audio console.
"This suite of drivers and applications has been updated and combined for your convenience. It installs the following applications to control your audio device's settings. For more details, read the rest of this web release note.
Applications included in this release:- Creative Audio Console (for Windows Vista™ only)
- Creative Device Control
- Creative EAX Console
- Creative Speaker Settings
Added Features or Enhancements:- Enables 44.1 kHz sampling format for SPDIF In and Out.
Requirements: - Microsoft® Windows Vista 64-bit, Windows Vista 32-bit, Windows® XP Professional x64 Edition, Windows XP Service Pack 2, Windows XP Media Center Edition 2005 or Windows XP Media Center Edition 2004
- Sound Blaster® Audigy® Value/SE/LS, or Sound Blaster Live!® 24-bit audio devices
Notes: - This pack is only for the Creative Sound Blaster audio devices listed above.
DO NOT install this pack for Sound Blaster Live! 24-bit External."
The second item there is simply a set of drivers without the software side for use with XP. Apparently they dropped that for XP on that line of cards while still providing it for those who upgrade to the new version. Being an older model card you are then prompted to spend on a newer model!