[Zope] Where's the help for LocalFS?

I have LocalFS running in Zope 2.2.2 on Linux and Zope 2.2.4 on NT and there is no Help Tab (per LocalFS documentation) when I edit a LocalFS object. There is a methodHelp.dtml in the .../Products/LocalFS directory. Any ideas why I cannot access LocalFS help from the Zope management interface? Is something broken? P. Johnson