[Zope-PTK] trouble's building CMF on Windows 98 box, zope 2.3.0

[Digital Hyakugei]

I did a fresh install of zope 2.3.0 from the win32 installer. Then i
downloaded the CMF alpha tar ball. Moved the PTKBase, PTKDemo and
ProtalTopic folders to the products directory. On start up, there are many
errors, but from the zope management interface, here are the tracebacks. I
have had the CMF working on my win98 box before...
Thanks for all the great work!
jos yule

PTKBase:
Import Traceback
Traceback (innermost last):
  File "C:\Program Files\WebSite\lib\python\OFS\Application.py", line 530,
in import_products
    product=__import__(pname, global_dict, global_dict, silly)
  File "C:\Program Files\WebSite\lib\python\Products\PTKBase\__init__.py",
line 89, in ?
    import MemberFolder, PortalObject, PortalContent, PortalFolder
  File "C:\Program
Files\WebSite\lib\python\Products\PTKBase\PortalObject.py", line 87, in ?
    from PortalFolder import PortalFolder
  File "C:\Program
Files\WebSite\lib\python\Products\PTKBase\PortalFolder.py", line 119, in ?
    class PortalFolder( Folder, DynamicType ):
  File "C:\Program Files\WebSite\lib\python\OFS\ObjectManager.py", line 221,
in __class_init__
    default__class_init__(self)
  File "C:\Program Files\WebSite\lib\python\App\class_init.py", line 117, in
default__class_init__
    security_info.apply(self)
  File "C:\Program Files\WebSite\lib\python\AccessControl\SecurityInfo.py",
line 245, in apply
    entry = (permission_name, tuple(names), tuple(roles))
TypeError: tuple() argument must be a sequence

PTKDemo:
Import Traceback
Traceback (innermost last):
  File "C:\Program Files\WebSite\lib\python\OFS\Application.py", line 530,
in import_products
    product=__import__(pname, global_dict, global_dict, silly)
  File "C:\Program Files\WebSite\lib\python\Products\PTKDemo\__init__.py",
line 90, in ?
    import Portal, ZODBMember, SQLMember
  File "C:\Program Files\WebSite\lib\python\Products\PTKDemo\Portal.py",
line 87, in ?
    from Products.PTKBase.PortalObject import PortalObjectBase
ImportError: cannot import name PortalObjectBase

PortalTopic:
Import Traceback
Traceback (innermost last):
  File "C:\Program Files\WebSite\lib\python\OFS\Application.py", line 530,
in import_products
    product=__import__(pname, global_dict, global_dict, silly)
  File "C:\Program
Files\WebSite\lib\python\Products\PortalTopic\__init__.py", line 86, in ?
    import Topic
  File "C:\Program Files\WebSite\lib\python\Products\PortalTopic\Topic.py",
line 87, in ?
    from Products.PTKBase.PortalFolder import PortalFolder
ImportError: cannot import name PortalFolder