Resolved Question: So many Problems with my LG Lotus?

Well Where do I began, First off when ever somebody calls me it shows the MP3 background on the outer screen. I have changed Incoming calls countless times. When Ever I do change it, it resets my MP3 player ringtone and I have to go back and change it. Is that what is messing up the phone. Because I had to rename my MP3 player so the phone would think its a video. Also I have a 1GB Memory card for it and I am told those are suppose to hold like 250 songs and when I put some songs on there not all of them go into my MP3 player. I really like this phone but I am having so many troubles with it. HELP