I am sure that some of the smart people will have a more high tech method but the way I did this is to connect your phone to your PC, both drives will open and you can view and make changes to the content on the drives. Just drag and drop the pics to the file you would like or create a new file on the SD card to place your pics and video. This is also the method I use to add music and movies, etc.
The path to find the pictures using astro on your device is emmc/dcim/pictures. Once you find the pictures long press and select edit then move. Then you need to navigate to your sdcard and the file you want the picture and select move here.