In order to do that kind of stuff, you'll need a program such as BitPim, available here:
http://bitpim.sourceforge.net/ . I don't have any experience with BitPim, but many of the guys at
http://www.howardforums.com do. Check out the Verizon Wireless and LG sections. Also check out the forums at
http://www.Phonescoop.com if you're brave enough to deal with the crummy interface.
EDIT: Of course, that program is unsupported, and is powerful enough to majorly screw up your phone. Verizon wireless does
sell software, but it's not available for every single phone they sell, and its functionality does vary by model.