Whenever I put my memory card in the card reader, it would open Picasa and start to import, pictures and videos. I organize my photos in my E:/ partition, and do not want Picasa to import anything unless I specifically tell it to.

To stop Picasa from uploading all your pictures from the card, go to Windows Explorer, right click the card and select Properties. Then select the AutoPlay tab. Then, in the drop down box, select "Mixed content". Then click "Open folders to view files". [Apply] and [ OK ]. Now when you plug in the card in the card reader it'll only open a  Windows Explorer window so you can view the files.