Default program process for ringtones

[Coomanperson]

Hey all first post. Anyways...

I have the droid x2 and i have Zedge on it. I was going to look at my ringtones within settings and somehow the default program was set to be opened with android os. So none of the Zedge ringtones are there for me to choose from. What process in my "Manage applications" list would allow me to change this default?

Thanks in advance