It looks like you created a custom heading with an <asp:Hyperlink
Did you specify the ImageUrl like this:
if so, try it like this:
Note also, if you are planning to move this to the root http://business.troy.edu/ later, you will be making things difficult for yourself by developing content in a sub folder like /Portal because the urls will be incorrect later when you move it to the root. It would be far easier if you used a different host name like http://dev.business.troy.edu instead of a folder.
Hope it helps,