The drivers aren't made by Compaq, they're made by Creative. For some reason creative hasn't realeased them on their website yet. The drivers are definately worth a try.
As far as the crackling sound goes, do the following:
- The SBLive/Audigy MUST be on it's own IRQ. It's a really picky card. It won't even share with usb ports without crackling.
- Verify that none of your volume levels are above 80%. Anything higher could cause too much gain, and then you'll get clipping. (which sounds like a crackle)
- Depending on your motherboard, George Breese's "PCI Latency Patch" may do the trick. Head over to viahardware.com and pick it up if you have a KTxxx based motherboard.
- Pray that creative labs starts making better equipment & drivers.
I did that stuff and my crackling is gone. (I didn't need the PCI Latency patch, but some users have reported great success with it)