The sound card requires powered speakers... you have got powered speakers?
[COLOR=DarkRed]Yes/COLOR]They are turned on with the volume on the speakers up and plugged into the green jack on the sound card?
yes
Can I confirm you are using 98SE and not 98 1st or gold edition?
Direct link to Dell drivers These seem to be different from the download offered for your machine.... 19mb, but it appears to be the file from the original resource CD. This driver will only work if you have 98SE.
I found this at the Dell forums it is another driver, but not one made by creative... some one finally go fedup with the Creative/Dell driver problems and wrote one... apparently this has solved many a problem... but again requires a minimum of Windows 98SE
I have found one place that states it has the full 63 mb download... but I think you are on dialup?