Attached Link: http://www.renderosity.com/mod/forumpro/search.php?query=WAV&forum_id=&sort=post_date&use_age=yes&older_age=0&older_units=day

Not being able to get sound to import is something that their doesn't seem to be a definite solution to, so you'll need to check a few of the previous threads to see what (if anything) works for you.