for the select lists, click the dynamic button in the property selector.
in the Select Value equal to section, you have selected the name columns:
from the WADAtblcontacts recordset, you need to select the ID columns instead.
for the contacts update issue, you need to edit the recordset so that the contactID value is returned.
add another hidden element to the page and set the initial value to use the contactID.
in the Contacts update behavior, click the lightning bolt next to the Key Column value and select the new hidden element.