I just saw the normal banner ad, but then I do have Firefox set to block pop-ups.
Hosting isn't expensive, if you have a decent amount of traffic you should be able to put your own ads on to fund it and maybe make a profit. Some Amazon links to the music that you are playing can make a bit of money as well.
I think it has something to do with something conflicting in my CSS style. It works on www.xradio.bravehost.com/player which uses a different CSS. Can anyone check it out for me?
I tested the home page in FireFox, Chrome, Opera, Safari, and IE8. Only IE had a problem. Maybe something in the ad markup? Try testing it with the w3c html and css validators and see if anything is flagged up.