E715 ringer question

I'm new to this stuff, and I was wondering if the Hi-Fi ringers are just mp3s, and if so, if there was some kind of site where I can upload the mp3s to my phone for free. Thanks

And I don't have a data cable

is that the only way to get songs off this site is through a cable? What is a cable anyway :-( I am so lost

you dont have to use a cable for the e715 you can use the iRDa or whatever it's called [infrared thing] if you have a laptop that has it too.