There are lots of errors that people are reporting with the DW expansion and DW does not work with my computer. PI refuses so far to tell us what they are going to do about it so I am guessing there will not be a beta patch for DW until a month or more from now. that means I probably wont have a TN version of DW ready until a few months from now.
I suggest that if you have not bought DW yet, dont bother. Wait until PI fixes these bugs.