All template files are located in

app/locale/en_US/template/email.

1, Upload a new logo to

images/logo_email.gif

2, Change any file with *new.html

alt=”Magento” –> alt=”InnoVita”

3, Change any file with confirmation.html

 Demo Store –>  InnoVita

4, Change email and phone number

 dummyemail@magentocommerce.com –>me@my.com
magento@varien.com –>me@my.com
(555) 555-0123

5, To make sure you have changed everything
 

cd  /home/xxx/webapps/app/locale/en_US/template/email
cat *.html |grep Demo
cat *.html |grep 555
cat *.html |grep magento

cd sales
cat *.html |grep Demo
cat *.html |grep 555
cat *.html |grep magento