Jessica
You are fine with Norton Internet Security, it will block port scans and you are safe.
shadley000 is partially right!
You can send the pictures from your computer to the media gallery just as you did.
But in order to put the pictures on the board there arre two ways
1. is called a link, example hear is a link to a cartoon on a website, a click on it and it will open.
http://www.worldisround.com/articles/7874/photo11.html
2. is called html or vb codes where you put the computer language in formatted letters coding telling the computer which website to transfer the picture from.
<Img src="http://www.worldisround.com/photos/129/103.jpg">
Not only can you upload pictures but music can be uploaded as well but that is a real bandwidth (internet space) user.
Don't be to upset because it takes awhile to learn just like opthalmic surgery, just use the the media gallery and send to Rob to put on this site.