Hello,
I'm sorry, but I don't understand. The quickstart package is latest version of WordPress with our theme, content, configuration included, so it's not possible to install the quickstart on your existing wordpresss (spanish) installation.
If you want to install the theme on existing wordpress installation, please use only theme files (not the quickstart) and follow this page:
http://www.gavick.com/documentation/wor ... iguration/