Magento base image fix and spanish compleate translation

Hello! I need help to imporve some issues about my site [login to view URL]: 1) I have problem with base image visualization. All the images that i upload in landscape dimensions are displayed wrong please see: [login to view URL] I need fit it all images in the base frames without distortions. 2) I need have a complete translation of my magento site in spanish. Actually I have some areas that are not in Spanish and i don´t know how translate it. 3) I need reduce the height of the transparent bars in my home page to in cress the visibility of my home banner. 4) I need change the design of my send button from the contact form like add to cart button. [login to view URL] 5) I need add a link in the top bar menu on the right Thx!