Based on the screen shots that you provided, you are choosing Print instead of Print Booklet. I'm assuming you are trying to output Printer's Spreads and to do that from an InDesign document that you've build as Reader's Spreads, you'll want to use Print Booklet.
No, I think that dialog is what has come up by pressing Setup in the Print Booklet dialog...
I suspect you still need to go one step further and change the page size under Setup in this dialog to be large enough to hold a spread. Print booklet does not print "spreads" in the normal sense that the print dialog uses, putting two single pages together onto one printer sheet, but instead puts the content from two pages together onto a new single page that is twice as wide.
I bet if you look closely at your "single pages" PDF that half the pages are actually missing.
Further to this your printer should be making the imposed pages, not you, and if they are asking you to supply them then I recommend you find a new printers ASAP.
Making a PDF by distilling is destructive to certain elements that are an advantage to the printers, like transparencies, and colour mangement and a few other things.
If you really need to do a proof for yourself of the printed magazine, use File>Export and choose PDFx4a - leave spreads unticked.
Then open the PDF in Acrobat and print from there, there's a Print Booklet feature in Acrobat print dialog box (why there isn't in InDesign is a mystery!)
Anyway - I wouldn't recommend making a PDF by distilling - that's very old school and times have moved on.
I did read about getting that adobe 9 PPD and after long searching I managed to find it (the page in the original post was not available anymore).
Here's the PPD:
It has to go in:
Applications ▸ Adobe InDesign CC 2014 ▸ Presets ▸ PPDs
The PPDs folder naming has to be exact (lowercase s)