How do I find my last years tax return records

First its not a good idea to piggyback your question on someone else's. This can lead to confusion. You should start a new thread. So I've moved your question to its own thread.

If you can't find your copy of your return, contact the IRS

See: Need a Copy of Your Tax Return Information?

The easiest way is to call the IRS and ask for a copy of your tax script.