Try making sure the number to recruit is set to max like 99999999, etc ...
Also make sure that the little tickbox at the bottom of each page is ticked i.e under Barracks/Stables/Catapult Workshop under the Recruit Tab.
Do not forget to make sure your Living Quarters are high enough to house the extra troops. I do not think they will recruit if you are max capacity on your LQ.
P.S. Nice necro, lol.