So, in the attached file, I made a couple little changes - for the two fields in the upper right, I changed the dropdown to store the ID and display the Title. My guess is that in your assorted connected lists, the lookups are going to actually have the ID for the list item, not the text value (even if the text value is what SharePoint displays). I also added a little troubleshooting section you can use to help figure out what the query fields are being set to and what they need to be - the query fields and data fields are on the form with a query button - so you can set values, and try running the query. I think that is usually the easiest way to figure this stuff out - to see what is actually happening. You can just delete all that once you have the form working the way you need it to.
Save the attached file locally. Right click the file and select Design to open in design mode - from there you can preview.