Informix 7 ODBC Driver don't work


I'm usin Delphi 5 and Informix 7 for UNIX, I'm connecting to the database
server with the Informix ODBC, and I view the database with SQL Explorer, I
can see all the tables and data stored, but if  I try to view the index,
there are no found, but if I see the index directly in the database server
there exist.

Somebody have any idea about thuis problem????

I found thas the sql query that Delphi use to extract the index names are
invalid, this sql query require that all tables have an table alias.