Feeling stupid here...

[Jontatas]

I've spent the better part of this weekend trying to get a simple working example working of a web service using an MS SQL database as persistent store to no avail.
I feel as if I'm missing something simple, been rummaging through all the examples on netbeans.org and I can't quite find what I need.

In short, what I'd like to do is the following:
Using an Enterprise Java EE project.
Make an entity bean from a table in MS SQL Express 2008
Make a session bean with methods that return data in the form of a List<T>
Build a web service that uses the said session bean to supply a client with data.

I keep getting all sorts of errors but mostly NullPointerExceptions and a lot of ClassNotFoundError for jTDS, I also tried the MS drivers but that didn't get me further.
Is there a simple build pattern for doing this that I'm overlooking here?

TIA
/Jontatas