As for the music problem. When you got your new V, it more than likely had the latest software version on it and therefore will only play WMA or Windows Media files.
To solve this problem, do this:
open the phone and press OK to bring up the menu
press the 0 (zero)
its going to ask for a service code, press the 0 (zero) 6 times
you should now be in the Services area (be very, very careful in here)
scroll down to Music Setting (number 12) and press ok
use the directional arrows to highlight (move till the black dot) has MP3 & MOD selected and then press ok
once that is done, press the clear button till your all the way out of there, or you can press the end button.
Just to make sure it reset's, turn your phone off and then back on. You should now be able to see and listen to all the MP3's you have on your memory card.