Why can't I use custom ringtones on my Rogers cellphone? [Solved/Lock]

Farout Foolio

So I recently got a cool modern cellphone after having an antique for forever and ever.
The instruction manual clearly states that pretty much any file format can be put onto the phone and used as whatever, but when I am on the phone navigating the folders they appear empty regardless of what I do.
The file types of all the built in ringtones are mp3/wm4/midi, and I've tried all of those.

the phone manufacturer says : LOL I dunno call Rogers
Rogers support says : LOL I dunno call the phone manufacturer.

I want a bad horse ringtone SO BAD. ;-;

Pheezer

Saying which phone you have might be a good start. Howardforums.com is where I go when I have a really obscure issue, though.

Farout Foolio

Sorry, it's a Sony Ericsson C905

Edit: It works!

Pheezer, a very sincere thankyou. : )