How do you make it so when you hover over a link it plays a sound?
Javascript, I would assume. Write a function to play the sound, then put it in the onOver or onHover (Can't remember which one it is, something like that) element of the link you want it for.
It can be done more easily with Flash (in my opinion), but that would take more time.
The creators of Javascript really should make a simple function of 'playsound()'.
Oh, and can you please tell what the problem is in the title/subtitle of the topic? 'Hmm' is extremely helpful, but some might not understand what the problem is before viewing the topic.