I'm not real good with sound issues, so I hope someone who knows more than I do will step in. A few questions:
* How did you install KDE 3.5 on VL6 Standard? With Gslapt? What packages did you install?
* Did you open a terminal (like Konsole) and type
at the prompt? Is anything muted (you'll see an MM in a box right above each label on the bottom of the screen)? If so, unmute whatever is muted by typing m when that label is highlighted. You move among them with the arrow keys and hit Escape to close alsamixer.
* If still no sound, run alsaconf again. The quickest way is to su to root at the terminal prompt and then type
at the prompt. I would probably boot into text mode to do this, but I really don't know if it's necessary.
* If still no sound, go to a terminal prompt, su to root, and type
lsmod > lsmod.txt
That will create a file called lsmod.txt in the directory you're in when you run lsmod. Open the file, copy the contents, and paste them into a message in this thread. Or you can attach the lsmod.txt file to your message.
We'll see if we can figure out what steps you need to take once you've reported on the results of my suggestions.
Above all, DON'T GIVE UP if you don't get an immediate solution.
Has your sound worked on other distros you've tried? Do you have one or more partitions with another distro on your computer right now? Do you have LiveCDs for other distros you can run? If we can't solve your problem immediately, it may help to try a LiveCD where sound works. People can tell you where to look that might help you get sound going in Vector.