Hey Mark,
I am really sorry for the delay of this reply as it is a weekend for us here.
After investigated long time ago, it seems like you Joomla user do not have correct create table access privilege to your database, so the installation stuck at 45% (
http://screencast.com/t/VbgRNSrks5i ), can you double check with your phpmyadmin user privilege configuration is it set correctly?
Second, I have manually create all the Easyblog table in your database through phpymadmin access (
http://edmontoncarrental.ca/ <- this site ). But I noticed now you hitting this error when access Easyblog page :
Fatal error: Class 'JControllerLegacy' not found in /hsphere/local/home/edmoncar/edmontoncarrental.ca/administrator/components/com_easyblog/easyblog.php on line 71
The reason why you hitting this is because your current Joomla 2.5 version is not updated, you should update at least 2.5.6 above. You can read more info in this thread ->
http://www.seblod.com/v2/forum/105-General-Discussions/41172-Fatal-error-Class-JControllerLegacy-not-found.html
But In my suggestion, you should update to 2.5.28 version, because this is the most latest in Joomla 2.5 and Joomla will not release another new version in 2.5version in the future.
Can you update your current 2 site Joomla version to 2.5.28 from 2.5.2?
Once you updated Joomla version and grant correct with your db user privilege, I will double check again and help you install Easyblog 5 in your another site as well.
keep us updated the process.