Station drivers has some new SB Live 5.1 drivers available for Windows 2000/XP. This one has the following notes:

• Sound Blaster Audigy performance increased by 10%-15% for EAX ADVANCED HD
• Number of simultaneous voices has been doubled from 32 to 64
• Reverb presets setting by game audio engine is now on average 10X faster
• EAX Morphing performance enhanced, typically yielding a 2X improvement in frame-rates for morphed sections.