You'll find a lot of helpful information under the Credit Education tab. Ovation keeps their blog updated regularly on topics ranging from Bankruptcy to Payday Loans and much more; if you feel a little lost just browsing through the most recent posts, you can click on any of the topic categories on the right side of the page, underneath the Recent Posts header.
If you find information that is incorrect, you can file a dispute. Remember too, that items on your credit report that you don't recognize could also be potential signs of fraudulent activity — someone working to secure credit in your name for their own use. Make sure you're clear on items that could potentially be fraudulent, versus those that may simply be inaccurate.