Where and how do I deduct for foreign dividend tax withheld. Also has the standard deduction for some age 90 (over 65) been deducted

in the 1099-div  section of the interview.  under the 1099-div there should be an amount in Box 6  note you will have to check a box that your 1099 has more than just these boxes to be able to input an amount in box 6.

There will then be a section of the interview  during the Deductions and Credits section of your Federal return for Foreign taxes paid where you can choose a schedule A deduction or a credit by filing form 1116...