You get the option to import near the beginning of the "Stocks, Mutual Funds, Bonds, Other" interview, not deep in the bowels of a specific step by step interview. When you begin the interview almost the first thing you're asked is "did you get a 1099-B"? and if you answer "Yes" then TurboTax starts the interview section for "importing."
If you've got "Fidelity" already established as a broker then delete Fidelity and start the "Stocks, Mutual Funds, Bonds, Other" interview again, answering "Yes" to the "1099-B?" question.
Actually, it might very well be too soon to start importing 1099-B's since they aren't due until mid to late February.
Tom Young