I am separated. I pay alimony and have entered my wife's name and SIN on the form Turbo Tax provides. Why does information NOT appear on the first page of my tax form?"

You should make sure you haven't entered the amount of alimony you pay as "Non-Deductible". Only enter the deductible amount "once" on the Spousal and Child Support Payments Made page in the "Total payments made" box.