I am running 2.1 with LDAP authorization. In order to get user homes to show up in the "User Homes" space, I did the following (rather than change to the personalHomeFolderProvider).
1. in ldap-authentication-context.xml:
<property name="attributeDefaults">
<map>
<entry key="cm:homeFolderProvider">
<value>userHomesHomeFolderProvider</value>
</entry>
</map>
</property>
2. in the unzipped alfresco.war, I modified the WEB-INF/classes/alfresco/authentication-services-context.xml file:
<bean name="homeFolderManager" class="org.alfresco.repo.security.person.HomeFolderManager">
<property name="nodeService">
<ref bean="nodeService" />
</property>
<property name="policyComponent">
<ref bean="policyComponent" />
</property>
<property name="defaultProvider">
<ref bean="userHomesHomeFolderProvider" />
</property>
</bean>
I hadn't seen anyone else post that second piece, and I believe it was required in our environment.