Sorry for the newbie question...
When I go to http://www.plans4boats.com/scripts/youtubeplayer/ in Google Chrome, I can see a full listing of the files there. What should I do if I don't want any old hacker to just come in and view/copy my source codes? Does it have something to do with htaccess?
I discovered that putting a blank index.html file in the folder helps for THAT folder, but it still leaves all subfolders vulnerable.
What should I google for more information on how to set up my server to prevent this?