Get a .bar extractor and extract the sounds from the file in the sounds folder. i believe there is one in the aomheaven downloads section. if that doesnt work, try some of the sites that are in the links section to find the .bar extractor.
you can also download a 'sound pack' in the downloads section as well. it has some nice sounds.. the only nit i have with it is some of them are tinny and there's this one annoying catapult sound .. otherwise the sounds are good. to get rid of hte ones you dont like just delete them from the sounds folder.
"Skydiving. Good to the last drop."