The questions that TurboTax asks are there to aid you in calculating any use tax owed. The only information that is reported to the state is the end result of all your calculations. No detail of what or how items were purchased. I'd advise that a good faith effort be made based on your understanding of what should have been paid if you were purchasing the items locally.
However, if you have been notified by a company that they failed to collect the sales tax at time of purchase, be sure to pay that use tax as part of your tax return.
