I have faced this many times. I'm missing something.
When we click on config deploy file, in the step where we provide jdbc driver, I'm forced to use JTDS driver to be able to click on Next. If I use Microsoft driver, the next button doesn't work and can't go further.
The surprise is that when I login with admin, I get a big stacktrace about license. That issue was resolved by changing the files active-bpel.xml and activevos.xml to use Microsoft sql driver and not JTDS.
Any idea why using MS SQL jdbc driver doesn't work in this screen ?