Convert small jpg logo to vector logo

I have a client logo that was sent to me as a jpg. The logo is too small to be blown up to anything beyond a business card. I need the logo to be traced and turned into a vector image so it can be blown up to fit on a billboard. This project is urgent, and needs to be turned within 24 hours. It's also extremely low budget, so please no bids over $30. I know this one is a quick one. Please provide the image as an Adobe Illustrator CS3 file so it can be modified slightly. Let me know if there are questions. Thanks!