Audiovox CDM-8900

is there any websites that offer ringtones compatible to this phone? i've looked at the BREW option in the phone for downloading rings right from there, but they are like 10 dollars for 10 uses or something crazy like that! i just want to buy a few for a dollar a piece online that i can keep as long as i want, but it seems this phone just doesn't work with the sites...? it plays polyphonic ring tones, shouldn't it be able to recieve them from online?