Thank you for the question. This could be due to any number of issues, and we'd be more than happy to investigate. Can you provide us with an example of a sold property that you've been able to find on our site, but not in the MLS or title search?
That might be a question to ask 'customer service' see the bottom of the site for a link.
However, I think there might be too much info for a nationwide data base of sales and title information. You might want to contact a local real estate agent for that information.
Brian Ripp, CRS, GRI
Real Estate Market Weekly Update Webcast: http://realtytimes.com/REUv/BrianRipp
Realtor since 1985