I think I see where your confusion is.
It's the estimated property tax for 2015 that was pro-rated on the HUD-1.
The tax return you prepare now for the 2015 tax year would only have a deduction for your pro-rated share for the 2 months of 2015 that you still owned the house.
The tax return you prepared in 2015 for the 2014 tax year would have had the full deduction for the property tax paid in 2014.
Whether that's how it worked out depends on when you paid the property tax for what year.
Example: My 2015 property tax was due half in Oct 2015 and half in March 2016. I take the deduction in the year I pay it so my 2015 return wouldn't show the full amount of 2015 property tax, it would show the Oct 2015 payment and the March 2015 payment. The March 2016 payment would go on my 2016 tax return that I prepare in 2017.
Now let's say I sold my house last month, Feb 2016 before paying the balance on the 2015 property tax. The HUD-1 would show me paying that amount into escrow plus the pro-rated amount for Jan and Feb 2016.
In your case, if you paid all of your 2014 property tax prior to the end of 2014, then your tax deduction would have been on your 2014 tax return that you filed in 2015.
The pro-rated amount of the 2015 property tax (apparently the $1000) would go on the 2015 return that you are preparing now.
On the other hand if, by the sale date, you had not paid anything toward the 2014 property tax then you would have had to put the full amount of the 2014 property tax into escrow plus the 2 months of 2015's property tax and you would get the deduction for the full 14 months property tax on your 2015 return that you are preparing now.
If that doesn't clear things up let me know.