This is an example of Wow Slider available HERE.
WOW Slider is free for non-commercial websites. But if your site generates any type of income, e.g. sells products, ads, services or just represents a commercial company, you should get a commercial license.
You can either use the code generated by the app in an iWeb Snippet or display it in an iframe as shown here...
http://www.iwebformusicians.com/Banner-Slideshow/Wow-Slider.html
The free version displays the Wow slider logo so you may want to look at alternatives if you don't want to pay for a licence to remove it. For example, the basic version of Galleria is free to use without restriction and is well featured...
http://www.iwebformusicians.com/Banner-Slideshow/Galleria.html
It can also be made responsive and suitable for mobile devices...
http://mobile.ezmacwebdesign.com/gallery.html
Its not a brilliant idea to put a banner of this size on the landing page of your website. It causes the page to download slowly due to the size of the images used.
Here's a couple of simple banners...
http://www.iwebformusicians.com/Banner-Slideshow/Javascript-Banner.html
... and one that incorporates popup captions and hyperlinks...
http://www.iwebformusicians.com/Banner-Slideshow/Action-Banner.html