No, those are unrelated problems. One step at a time: Attach the files and I can tell you what's wrong.
As for the <expt> elements: You write them as always. The question you need to ask yourself: How many between-subjects conditions are there in your "training" and your "control" script respectively? Then think about which numbers you feed into each via the <batch>. As discussed earlier, "training.exp" only gets odd ids (1,3,5,...), "control.exp" only gets even ids (2,4,6,...). The <expt> elements in those scripts need to account for that.