You only need a server.cs and a description.txt.
and how would I go about doing the server.cs thing?
Make datablocks in there to make the sounds. Look at the default sound's server.cs for examples.
how do I do that though? I'm new to all this :P
Open up a sound add-on, read it's server.cs, and copy it. Just make sure to replace the file names and datablock names.