There is no <item> element called "responseitems" in the code you posted. The only <item> element you have defined is called "probe".
If you want to store the responses in
<item probe>
</item>
then your /ontrialend logic ought to read:
<surveypage page1>
/ questions = [1=name; 2=nameM; 3=nameV; 4=date; 5=place]
/ ontrialend = [item.
probe.insertitem(textbox.name.response, 1)]
/ ontrialend = [item.
probe.insertitem(textbox.nameM.response, 2)]
/ ontrialend = [item.
probe.insertitem(textbox.nameV.response, 3)]
/ ontrialend = [item.
probe.insertitem(textbox.date.response, 4)]
/ ontrialend = [item.
probe.insertitem(textbox.place.response, 5)]
</surveypage>