If you relocate Liferay to a different context path by moving the webapp from Tomcat's webapps/ROOT to webapps/liferay (for example), then the hard-coded values in the 7cogs sample journal articles become invalid. For example, take a look at
In there, you can see some content such as:
The hard-coded /image path fails to be retrieved, since the actual images servlet (and other servlets) are actually located at the relocated path (e.g. /liferay). So the correct path above would be
Where $ROOT_PATH is the relocated context path.
I believe some additional text replacement needs to occur during the sevencogs-hook execution.