Custom ringtones on LG fathom vs750?

[aQi_g]

I have LG FATHOM vs750 ,
i have installed a micro sd card in the fathom with a bunch of ringtones and mp3s on it.....how do i make the sounds my actual ringtones for the phone? instead of using the standard ringtones that come with the phone?

[robbinghood]

There must be an option to change ringtones.