Joomla Web Hosting Canada

The Joomla 1.7 version number was displayed at the bottom of the Administrator page ...

For Joomla 2.5 it can be found at Site -> System Information

For Joomla 2.5.0 it says:

Joomla! Version      Joomla! 2.5.0 Stable [ Ember ] 24-Jan-2012 14:00 GMT