LG VX-8100

Here's an easy step by step to get pics or mp3's or even movies onto your memory card.
What you will need:
MiniSD memory card
MiniSD to SD adapter
USB card reader
Place the card into the adapter, then into the USB card reader that should be atached to your computer somewhere.
Erase all the data from the card or "Format" the card so it is completely blank.
Place the card into your cell phone and power cycle the phone (turn it off and back on again). This has created folders on your card...
the folders should be->
MY_PIX
MY_MUSIC
MY_FLIX
MY_SOUNDS
MY_MP3
To verify this, you should then take the card out of the phone and place it back into the adapter and card reader atached to your computer.
Now simply drag and drop your .jpg or .gif files into the "MY_PIX" folder on your card.
Also you can drag and drop mp3's to the "MY_MP3" folder, .wma's to the "MY_MUSIC" folder and .3gp videos to the "MY_FLIX" folder.
I hope this was helpful