ODBC Error - Please Help!!

I managed to map the tables using the XNODE wizard but when I try to DEFINE the schema into Tamino, it prompts this error:

<?xml version="1.0" encoding="iso-8859-1" ?>
<ino:response xmlns:ino=“http://namespaces.softwareag.com/tamino/response2” xmlns:xql=“http://metalab.unc.edu/xql/”>
<ino:message ino:returnvalue=“8505”>
<ino:messagetext ino:code=“INOXME8505”>ODBC error occurred</ino:messagetext>
ino:messagelineState: 28000Native Error: 18456 [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user ‘sa’.</ino:messageline>

Anybody knows what this error means? By the way, the userid is the same when I create the DSN and I managed to get the tables using the XNODE wizard. Everything was perfect except when I tried to define the schema. There’s no password required for the database only the default login id ‘sa’ for Microsoft SQL Server 2000. I tried usoing Access and it works fine. Is there any configuration for MS SQL Server 2000. Please help…

By the way, I’m using:
- Tamino Server
- Microsoft SQL Server 2000

sorry… the error has already been resolved. It is due to the settings in Tamino Manager in the database properties whereby the default password supplied is ‘guest’. So what I did is supply a password for my database.

But what if i need a blank password?? Anybody know how to set a blank password in the XML properties in the Tamino Manager. When I delete the password, it still takes in the default value as ‘guest’! please help…