I'm assuming this was a cashless exercise because you had income show up on your w-2. When I had a similar situation, I did the following:
If you made $50,000 in salary and $10,000 in stock options then your W-2 now says $60,000.
You'll record that on your taxes just like it was regular income. You'll also get a form that talks about your stock sale. But remember, you bought and sold the stock within seconds. Your forms will probably look like this:
Bought stock: $10,000
Sold stock: $10,000 + $50 commission
Total profit (loss): ($50)
From the Turbotax/IRS view point, you lost $50 on the sale of the stock because you paid the commission, but the buy and sell prices were identical or nearly identical.