Problems with TMDA-CGI

Hi,
when  I log to tmda-cgi I get the following error, can anyone help?

Thank you in advance

A problem occurred in a Python script. Here is the sequence of  
function calls leading up to the error, in the order they occurred.

  /usr/local/tmda-cgi-0.16.4bis/tmda-cgi.py
   115 try:
   116   try:
   117     PVars = Session.Session(Form)
   118     CgiUtil.ErrTemplate = "error.html"
   119   except CgiUtil.NotInstalled, (ErrStr, PVars):
PVars undefined, Session = <module 'Session' from '/usr/local/tmda- 
cgi-0.16.4bis/Session.pyc'>, Session.Session = <class  
Session.Session>, Form = FieldStorage(None, None,  
[MiniFieldStorage('user...'azerty'), MiniFieldStorage('cmd', 'init')])
  /usr/local/tmda-cgi-0.16.4bis/Session.py in  
__init__(self=<Session.Session instance>, Form=FieldStorage(None,  
None, [MiniFieldStorage('user...'azerty'), MiniFieldStorage('cmd',  
'init')]))
   406             "Cannot execute %s" % Filename, "execute stub",
   407             "TMDA_VLOOKUP = %s" % os.environ["TMDA_VLOOKUP"],  
"Recompile CGI.")
   408         Params = Sandbox["getuserparams"](List)
   409         self.Vars["HOME"], self.Vars["UID"], self.Vars["GID"] =  
Params[0:3]
   410         if len(Params) > 3:
Params undefined, Sandbox = {'GetPrepend': <function GetPrepend>,  
'User': '[email protected]', '__builtins__': {'ArithmeticError':  
<class exceptions.ArithmeticError>, 'AssertionError': <class  
exceptions.AssertionError>, 'AttributeError': <class  
exceptions.AttributeError>, 'DeprecationWarning': <class  
exceptions.DeprecationWarning>, 'EOFError': <class  
exceptions.EOFError>, 'Ellipsis': Ellipsis, 'EnvironmentError': <class  
exceptions.EnvironmentError>, 'Exception': <class  
exceptions.Exception>, 'False': False, 'FloatingPointError': <class  
exceptions.FloatingPointError>, ...}, '__doc__': 'Stub for interfacing  
to /var/qmail/users/assign', 'getuserparams': <function  
getuserparams>, 'os': <module 'os' from '/usr/lib/python2.4/os.pyc'>,  
'string': <module 'string' from '/usr/lib/python2.4/string.pyc'>,  
'sys': <module 'sys' (built-in)>}, List = []
  /usr/local/tmda-cgi-0.16.4bis/stubs/psa.py in getuserparams(List=[])
    38   UserList=User.split("@")
    39   if (len(UserList) > 1):
    40     prepend=GetPrepend(UserList[1])
    41   else:
    42     prepend=GetPrepend(None)
prepend undefined, global GetPrepend = <function GetPrepend>, UserList  
= ['test', 'neosmedia.be']
  /usr/local/tmda-cgi-0.16.4bis/stubs/psa.py in  
GetPrepend(dom='neosmedia.be')
    23         VirtualDomains="/var/qmail/control/virtualdomains"
    24         #VirtualDomains="/usr/local/tmda-cgi-0.16.4bis/ 
virtualdomains"
    25         F=open(VirtualDomains,"r")
    26         domLine=F.read();
    27         domList=domLine.split("\n")
F undefined, builtin open = <type 'file'>, VirtualDomains = '/var/ 
qmail/control/virtualdomains'
IOError: [Errno 13] Permission denied: '/var/qmail/control/ 
virtualdomains'
       args = (13, 'Permission denied')
       errno = 13
       filename = '/var/qmail/control/virtualdomains'
       strerror = 'Permission denied'