Using the JDBC Simba Salesforce Driver

Hi!

I'm trying to use the Simba JDBC Salesforce Driver to connect to Salesforce via this driver, that's is posible?

In the configuration i use this file:

SalesforceJDBC4.jar and in the class apears: com.simba.salesforce.jdbc4.Driver

and defined this URL Template:

jdbc:salesforce://{host};UID={user};PWD={password}

But, its not working.... any idea? 

thanks a lot!!