I can not find my last years tax refund amount, How can I get the exact dollar amount that I received for the year 2007? Thanks!

Normally, for most of the requirements your purpose is served if you ask IRS for Transcripts instead of your tax return. You can order a transcript by calling 1-800-829-1040, or using Form 4506-T, Request for Transcript of Tax Return. There is no fee for a transcript. Transcripts have most of the information from your tax return including information from W2, 1099.