If they're on your SD card, then enable Mass Storage Mode, connect the device to your computer. Your device will then prompt you how you would like to connect, select USB drive and enter your password if you have one.
Then on your PC, go into My Computer and you should see a Removable Disk drive which will be your BlackBerry. From there you can save them to your PC.
__________________ The difference between stupidity and genius is that genius has its limits. When you take things for granted, the things you are granted, get taken. Even a mosquito doesn't get a pat on the back until it starts to work. Too many people miss the silver lining because they're expecting gold. [BES 5.0.3 / GroupWise 2012 HP2]