Hi Richard,
The "ID Http parameter required" message shows up because your qListForm is in Edit Item mode and therefore expects an ID of the list item to be edited. You can fix that by editing the OOB Edit Item page, hide the OOB list form and add qListForm on that page and set it up to Eidt Item.
In thos way when you edit an item of that list the ID will be passed and qListForm consumes it.
For the qSelector passing data to a qListForm you can accomplish that using the session. The idea is to select a value from the qSelector, refresh the page, store the selected value in the session and on the qListform for that the field you want to display the data from the selector you pick Consume from session and use the name and the value set up in qSelector.
Please check the documentation for qSelector and qListForm related to Session.
If you still have any questions please let me know.