<<After this I've tried the ibphoenix odbc, and I can connect to my
firebird database, but when I want to generate a query for a user
table I get this error:

Dynamic SQL Error
SQL Error code=-204
Table unknown PERSONAL
At line 1, column 24

The table exists!

If I make the same query for a system table I don't get any error
message, it works fine. And the same occurs if I create a new table
as the destiny for the new data.

Any idea about what's happening?>>

I would suggest that you post this to the odbc-development list,
you can find out how to subscribe at:

http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_groups

Paul