Hey,
No offence but the website looks awful. One of the main things that you could do to it would be to completly re-design it. Remembering to create a cleaner and more smooth looking website. Cleaner looking fonts would also make this website better.
As for the header, the image of the goat, as far as I am aware has nothing to do with the adverts that you have displayed on your website.
One of the ways in which I think would be to streamline the website, would be to put the adverts into two seperate columns. One on the left and one on the right. Then include all your content in the middle in a cleaner looking way.
As for the iframe .... They can be quite a good tool, if they are used in the right way. For example they can load content but look awful if there are borders on them or the content doesn't load right.
Need any help ... drop me a line!