Yes, Dan B is right. www.annualcreditreport.com is the government mandated site where you can get one report for free from each of the three credit agencies per year.
Other options are:
"Free" credit report sites. These give you your report for free (although many only give a one bureau report for free) if you agree to sign up for their credit monitoring service for a monthly fee. The trick with these sites is to get your report and then immediately cancel the monitoring service. May be a bit of a hassle but you can get your report for free this way.
Quizzle.com. This site is operated by Intuit and offers a totally free credit report without any other obligation. They are hoping you will buy some other Intuit product while their but don't obligate you to do so.
Another option is our site, www.morethanacreditreport.com. We don't give you a free credit report - you have to pay $14.95 for it. But we don't trick you into any other programs. What we do, though, is compare the loans you have on your credit report with those currently being offered by lenders in your area. If we find and opportunity for you to save money on your monthly payments (and we usually do), then we will set up a simple exchange so you can trade your current, high cost loan for a lower cost loan.
What makes this nice is that, in your situation where you want to pay off your debt and improve your credit score, we can facilitate this by lowering your monthly payments and making it easier to pay off your loans and the result is that your debt to credit ratio drops at the same time and improves your score.
Good luck to you!