Our troop just subscribed to TroopWebHost. When I tried to upload photos I couldn't see a way to do it. What am I missing?

Photos and videos must be associated with an event that occurred in the past (we figure you can't take pictures of something that hasn't happened yet, right?). When you purchase your site there are no events loaded, so there's nothing to link to.

If you add an event that occurred in the past, you should be able to upload photos for it.

How do we make our photo and video galleries private so the public cannot view them?

From the Site Configuration menu, select Set Photo Gallery Access.   This will allow you to make the photo and video gallery pages private.   It will also control whether photos from recent events will appear on the left side of the home page before you log on.