To get those detail footnotes from Roots three to print go to 'Reports' and then 'Family Journal'. Under 'style' choose 'custom'. Then see 'notes' where you can choose endnotes, embedded or none.
What you had with detail footnotes in R3 is not what you get in UFT. Remember how any detail footnotes that was exactly the same as another one was listed with the same reference number? When you do as I suggested above EVERY detail footnote from R3 with be listed in UFT with it's OWN number.