Error importing urls from module forum_modules.sximporter

Hi guys,

I'm getting a weird error when trying to post a message to my OSQA installation (this is a fresh installation - no messages are in there yet).

c:\\inetpub\\wwwroot\\asktecheyenet\\forum\\modules\\__init__.py TIME: 2010-09-06 17:01:41,842 MSG: __init__.py:get_modules_script:35 Error importing urls from module forum_modules.sximporter: 
 Traceback (most recent call last):
  File "C:/inetpub/wwwroot/asktecheyenet\\forum\\modules\\__init__.py", line 28, in get_modules_script
    all.append(__import__('%s.%s' % (m.__name__, script_name), globals(), locals(), [m.__name__]))
  File "C:/inetpub/wwwroot/asktecheyenet\\forum_modules\\sximporter\\urls.py", line 5, in <module>
    from views import sximporter
  File "C:/inetpub/wwwroot/asktecheyenet\\forum_modules\\sximporter\\views.py", line 4, in <module>
    import importer
  File "C:/inetpub/wwwroot/asktecheyenet\\forum_modules\\sximporter\\importer.py", line 12, in <module>
    from orm import orm
  File "C:/inetpub/wwwroot/asktecheyenet\\forum_modules\\sximporter\\orm.py", line 2, in <module>
    from south.orm import FakeORM
  File "C:\\Program Files\\Python27\\lib\\site-packages\\south\\orm.py", line 13, in <module>
    from south.db import db
  File "C:\\Program Files\\Python27\\lib\\site-packages\\south\\db\\__init__.py", line 72, in <module>
    sys.exit(1)
SystemExit: 1

I have tried going to the python command line and typing

    from orm import orm
    from south.orm import FakeORM
    from south.db import db

after setting the DJANGO_SETTINGS_MODULE environment variable - and they get imported fine. The line it exits on is if it hasn't found the correct database driver for South... but other requests seem to work fine as South worked when doing the setup commands and I've successfully logged in via OpenID (so created a user account)

Any ideas what could be going on?

Thanks

PS I'm running on IIS 7 and x64 Python 2.7