As stated on the homepage:
If you link from your web site to any of these audio feeds you must give credit to LiveATC.net and provide a prominent link to http://www.liveatc.net
from your site. Direct linking without prior approval is strongly discouraged.
You can directly link them, but also have to provide a link directly to http://www.liveatc.net
as well. You might want to talk to dave as well for his approval for where these links will be