I am trying to deploy Alfresco into a Liferay 4.3.3 + Tomcat 6.0 bundle. I have been having trouble getting Alfresco to show up anywhere in the list of options for "Add Content"; I was looking for an Alfresco category somewhere under which different portlets could be added.
Did you check for Alfresco (sub-)category under 'CMS' ? Maybe too obvious but at least the alfresco-content-portlet should show up without any problems. regards, Peter