after i add all the reference on my vb6 project and everything loaded successfully when i press on report button to view the report i face this error msg:

Logon failed
Details: ADO error code ox80004005
Source: Microsoft OLEDB Provider for SQL Server
Description: [DBNETLIB][Connectionopen]
sql server doesnt exist or access deined
sql state: 08001
Native error: 17

any suggestion can be help plzzzz

The error message is self explanatory. Did you test the connection before trying to pull reports.

the application connected with sql and i can save and delete and update the data put when i want show a report it gives me this message, from where i can check the report connection???

Have a look at this link or the google search with error 17 here