You translate the GBP as of the sale date.
You use the "Stocks, Mutual Funds, Bonds, Other" interview and tell TurboTax no 1099-B was received.
If you know what you're doing it's much easier to select "Stocks" on the "Choose the type of investment you sold" page rather than one of the employee stock plan step by step interviews, but they are there if you want to use them.
If that "Taxes" figure is referring to UK taxes you'll need to enter that information using the "Foreign Taxes" interview in the "Deductions & Credits" area.
Tom Young
