Someone jump in and correct me if I'm wrong, but I have the VX7000 that's very similar and you certainly can download pictures without Verizon.
Method 1: Use a Data Cable - the files are in the /dload/img directory on the 7000
Method 2: Requires resetting phone configuration settings and/or setting up your own
WAP gateway and then changing the MMS configuration to point to your own website.
Check out a site here for MMS_Diary that will allow you to upload the photos to a website of your choosing.
http://www.hellkvist.org/software
Nothing in Method 2 is as easy as paying Verizon $5 for internet access and buying a "pack" or unlimited photo downloads. But if you have multiple users on your Family Plan, it could make economic sense.
Cheers