Ok. Here is the skinny on how to resolve this problem.
1st- Let me thank the people who designed the XML Report Builder
for their fine work. I was a Discoverer Fan for many years. Now
I think that this tool has a great advantage over Discoverer and similar tools.
When getting such errors it is essential to test the SQL first in sqlplus.
I was able to eliminate problem tables when I put the sql first in SQL plus.
Another help is the Enterprise Edition of XML Publisher.
Go to the Report Section and Place the Query in the SQL Query. Save it and
run it. If it runs successfully it should run also sucessfully in Word-Report Wizard.