The support for PSP pages does not seem to work for
users home directories using ~ expansion. The system
tries to parse the http://host/~user/file.psp URL placing
the /~user/file.psp relative to the DOCUMENT_ROOT,
rather than parsing the ~user into the users home web
A fix for this will likely involve a fix to mod_webkit, to
retrieve the location of the UserDir configuration directive
to determine the users web subdirectory.
Fortunately, os.path.abspath() will handle the ~
expansion on the name.under *nix, however I am not
clear on if this even applies under NT.