Expressionista – tagline & copyright questions

Hi

I am fairly new with this theme and am struggling to find how to display the tagline in my site and I also want to change the text in the copyright section.

Please can you point me in the right direction.

It is a site I am creating for a fundraising organisation and need to do it fairly quickly.

Website: http://www.rosieschallenges.org

Thanks in advance
Shaun