i'm new here and already needing some help

hi, i'm new here and just got a droid a few days ago...so i'm just learning everything (and there's a lot to learn about it!) but i downloaded some ringtones from myxer and although i see them in the ringtones list on the phone when i want to set a new ringtone, i don't see them stored anywhere in the phone's memory. so how can i delete a ringtone? also, how could i save ringtones i download in the future to the sd card? i don't think anything is being saved to it. i had a blackberry curve before, so this is definitely a big change for me. i have never had a touchscreen before. i'm sure i'll be asking for a lot of help on here. lol thanks!
~Erin

 

so let me get this straight...lol...there is no other way that i can delete ringtones or access them on the sd card while it's inserted in the phone other than to hook it up to the computer?? wow. lol i just don't understand why i can't even find any of my ringtones on the phone from myxer after i have downloaded them except when i'm going to change the ringtone and then they show up on that list underneath the phone's default ringtones.