You don't "report" ANYTHING when you make estimated tax payments. You simply send in a check along with a voucher - 1040ES - and that's it.
Work through the the "Form W-4 and estimated taxes" interview under the "Other Tax Situations" tab. Enter your best guesses of income, deductions, exemptions, tax credits, withholding, etc. and see if estimated taxes are really NECESSARY in the first place. It's OK to owe the IRS a large amount of money when you prepare your income tax return. You just don't want to be "underpaid" and get hit with "underpayment" penalties. This "one time" event might put you in the situation of owing a lot of money, but not being "underpaid" because you do have a job from and taxes are withheld from your "regular" income.
