I know this is a basic question, but I can\'t seem to find an answer and I apologize, if this question is way too stupid, but here we go:
I am supposed to work with
Indeed. The thing is that the 2008 R2 version is very tricky. The JTDs driver seems to work on some cases. In a certain server, the jTDS worked fine for an 2008 R2 instance. In another server, though, I had to use Microsoft's JBDC driver sqljdbc4.jar. But then, it would only work after setting the JRE environment to 1.6(or higher).
I used 1.5 for the other server, so I waisted a lot of time on this.
Tricky issue.
Have you tried the jtds driver for SQLServer?
What about the official JDBC 4.0 compatible JDBC driver from Microsoft?