The one's preinstalled are on the phone itself, not the memory card.

As for adding more wallpapers, ringtones, and mp3s, simply plug in your phone, mount the SD card, drag and drop.

If you want more wallpapers, just drop a jpg on the card. Your handset will automatically recognize it as a pic and allow you to choose it for wallpaper.

If you want ringtones to show up in the ringtone list (when choosing one), the SD card has a folder called "Media." Within that folder is "Audio." Within that folder, there's "Notifications" and "Ringtones."

Notifications are for emails and texts
Ringtones are for.. well, duh.

Have fun!

 

Unless you have Root access to your phone, you won't be able to retrieve them. I do know where the stock wallpapers are they're right nere. Right click and download for optimal size

 

Funny? I rooted my phone and nothing went missing. Any takers on this problem?