Help!!! so stuck on this ringtone thing

Ok So i am new to this forum and to the droid 2 i just got one today. So if i am posting this in the wrong place sorry just let me know where i should post this. Anyways I am having issues on trying to set my ringtones for txt message email and ringtones. I thought I had it figured out by reading the post on here and i downloaded the ringtone extender thing and it shows the ringtone that I have chosen for my notification alert and ringtone but when someone calls me it doesn't play it or when someone texts me it doesn't play it. WHAT AM I DOING WRONG!?!?!?!