[TYPO3-english] source + dummy default template

[eman white]

Hi there, 

so i finally got source & dummy installed, but it simply says "Hello World". 

Is there a default template to work from ?

ie: - bootstrap.typo3cms.demo.typo3.org

if not, is it better to install the bootstrap (bootstrap.typo3cms.demo.typo3.org).

our intention is to use the website for business. 

please advise!

thanks.