Hey, I’ve just found this link on the Unity 3 page:
http://download.unity3d.com/unity/coming-soon/images/unity-3.0/gallery/3-normal.png
But it always refers to the “NOT HERE :-(” 404 page ?
Anybody still have the working links?
It’s actually a .jpg, dunno why it shoes as PNG when you hover the link.
So just change it to .jpg and it works.
Ah yes! Then they have a wrong link in Unity 3 page, hope they’ll fix it soon. 
that’s weird, you also get a 404 on the dir the photo is in.
Thats not weird, thats called “protection”.
EDIT:
Cowabanga, the links actually work for me when i click on them. When i hover it i also see the .png extension but when i click on it, it works.
Oh, maybe because I just middle-click and open them in a new tab?
Why use a 404 page on a 403?