How come when I hover cursor on the square object the tag says "Rounded Corner"?
But when I insert it on that page, it doesn't appear rounded at all. Is it my computer or my eyes are going bad?

when you insert the rectangle you'll have to set the degrees of the angle, as far as it saying rectangle (rounded) it means the option of a rounded rectangle not that it is rounded already. http://kellyinfo.com/web/angles.jpg

Thanks! That was easy.