There are two methods of changing the Ximenia logo: via the logo picker and manual change.
If you cannot see your new logo, ensure you have uploaded it to the right directory and the directory permissions are writeable. Enquire with your hosting provider.
Download Sources HereThe Style Settings panel in the Gantry based theme administration interface provides several options for configuring the main built in stylistic aspects of the template.
With Gantry, the ability to assign a certain style to an individual page has never been easier and/or more efficient. Just follow these simple steps:
Before selecting someone to handle the development of your site, it couldn't hurt to check out their site and ones they have developed. Be sure to ask what is included in the price.