Not all MP3 shows on my HTC Wildfire S

[Hatseur]

I got me a HTC Wildfire S and it is a good phone, but if a transfer my MP3 to my phone by copy and paste and i unplug the Usb plug it not show all songs in the right folder in defaylt music player?
I have also the MixZing and it the same problem there.
What to do so it show right??

 

[Hatseur]

I have found it out, i use the MortPlayer instead for the originale