FYI to all

I have discovered a problem in that if I install SQLXML 3.0 SP2 first I get
the problem of null values in the tree. If I then install SQLXML 3.0 SP1
over SP2 then the whole thing works. Obviously Microsoft have not ironed out
a new problem that SP2 has created and there will probabaly be an SP3 which
will fix it.