Well if you can not show me nor can you explicitly explain what you think is wrong it is hard for me to assist.
What is it that is not working or you think is not working? Explain in detail.
Are you having an issue showing the Invisionboard style over Photopost? If so whats the url its looking for the stylesheet?
Have you exported your stylesheets in Invisionboard to files. If so they will exist in the style_images directory like so css4.css etc