Crap, ah well, at least you have a fresh installed VPC now ...
BTW, what are the sound settings in VPC-W98? Playback device and such ? Somewhere in control panel, euuurhhh must check where, darn, forgot .... I'll be back.
[Edit]
Control panel -> System -> Device manager -> Sound , video and game controllers -> SB 16 or AWE -> properties -> resources
Should be:
Interrupt 5
DMA 01
DMA 05
And control panel 'multimedia'
preferred device -> SB16
advanced properties -> desktop speakers.
If that's all OK, I simply don't know where it goes wrong .....
[Editē]
Also when you open a command window and input
set you should see the SB settings, should be:
BLASTER=A220 I5 D1 H5 T6