Hello 36Steps,

Price Predictor, which is advertised on this site is a program which allows you to do this... It is a great program, and has been very helpful to me, but unfortunately it doesn't come with the back form (results yes, form no)... To obtain the back form you need to purchase it from a data supplier. If you can wait you can subscribe to Cyberhorse and start building your form database from today, at very reasonable prices, but unfortunately purchasing back data from Cyberhorse is horrendously expensive.

Cheers,
Chris.