Take the amount in Box 14 and divide by the number of shares vested. Add that amount to the Exercise Price per share, to arrive at your correct Cost Basis per share for reporting the sale from your 1099-B.
Now that you know your Cost Basis per share, enter your 1099-B as a regular stock sale in the Investments section (don't indicate employee stock). Enter the Cost Basis as shown on your 1099-B, then check the box that says 'my cost basis is missing or incorrect'. On the next screen enter the correct Cost Basis that you calculated earlier.
You don't need to report any other income. The Box 14 amount was included in your Box 1 Wages, so is being taxed as ordinary income.
Here's more info on Employee Stock Purchase Plans.
@mckmike62
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