That link works for me
https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-return-in-the-turbotax-cd-download...
Do not start changing anything until after you start the amend process. So ditch this return and start over. Hopefully you kept a copy of your originally .tax file to start again.
Open your original xxx.tax file in the program, File-Open
Then you should find Amend under
Federal Taxes or Personal (for Home & Business)
Other Tax Situations
