Dave to add pictures, go to the message board and go to the top Help section. There is a tutorial that is there.
Did you come to the website from
http://www.lugerform.com? If you did then you see Upload Photos, if you didn't then you need to come into the site from there, lots of info on the left for you to learn from.
From the few I have bought, police magazines are worth anywhere from $45 to $150, depending on condition. As Howard said, minty ones are worth more, but you usually find them less than that.
blayne