I know but they already said impex does not support maxportalweb on mssql.
The maxportalweb module of impex is not fully functional even on mysql. I am half using impex half writing queries on query analyser.

And this is not their problem.
I have a utf8 database derived from mssql. If I ask I'm quite sure the answer will be: "Your database is corrupted impex needs intact data..."