What is the correct path??

I am trying to get an external page to work. I can get them to work on my main site but not a subsite in my network. For example. The first link works. But the second one does not. i am sure it is simple but i cannot figure it out. Thanks in advance.

http://yachtpress.com/wp-content/blogs.dir/2/media/420tour.html

but this pages does not

http://stanmilleryachts.yachtpress.com/media/420tour.html