Error ex****ting to SDO - An attempt was made to reference a token

Hi,

I have inherited some maintenance of an existing MCMS 2002 deployment
while 
we are in the process of migrating to Sharepoint 2007. I am having trouble

with Site Manager ex****ting *anything*. Here is the error I get in Site 
Manager:

Error: 0
Description: An attempt was made to reference a token that does not exist.

(1008)
Severity: 5
Source: (ISOK File nrxmlstub.cpp, Line 110)
Debug info: N/A
Extra info: N/A
Client Source: CExProgress::ProcessPackage
Recommended Action: N/A

Any advice that could be offered would be very very much appreciated. This

is MCMS 2002 SP 2 running on W2K3 Server and SQL 2000.

Best
Peter