Array dimensions do not match

I have written this:

Private Sub Command0_Click()
Dim c As clsws_SFlow
Set c = New clsws_SFlow
Dim v As Variant
v = c.wsm_GetInstructionsTest("SSLConvey", "garnys", "courage")
MsgBox (v)
End Sub

Which calls:

Public Function wsm_GetInstructionsTest(ByVal str_sSource As String, ByVal str_sUser As String, ByVal str_sPass As String) As Variant
    '*****************************************************************
    'Proxy function created from http://195.217.202.154/application/cmti/webservice/searchflowws.asmx?wsdl.
    '
    '"wsm_GetInstructionsTest" is an array with elements defined as Variant
    'See Complex Types: Arrays in Microsoft Office 2003 Web Services Toolkit Help
    'for details on implementing arrays.
    '*****************************************************************

    'Error Trap
    On Error GoTo wsm_GetInstructionsTestTrap

    wsm_GetInstructionsTest = sc_SFlow.GetInstructionsTest(str_sSource, str_sUser, str_sPass)

Exit Function
wsm_GetInstructionsTestTrap:
    SFlowErrorHandler "wsm_GetInstructionsTest"
End Function


But i am getting the error "SoapMapper: Array dimensions do not match" from the line "v = c.wsm_GetInstructionsTest("SSLConvey", "garnys", "courage")"....help?