Redesign website in new plataform

Redesign website in Sparkle platform. Currently website is still done in iWeb and publisher needs to upgrade but has not the time or knowledge to do so herself.
I want to keep the overall look of the website, have plenty of material but I'm open to new ideas.
I want help and if a new design is what is necessary so be it.
My website is dynamic and it's about horses, if you love horses you will understand better. I'm trying to make a website that attracts people from all of Latinamerica, that works with Google SEO and all that stuff.
Website in question is www.InformandoEnLinea.com.mx