Sign up for esignal classic for $55 a month or iqfeed. Buy a copy of Qcollector from www.mechtrading.com for $129, download intraday data. Cancel feed if you do not need it.
You might need to sign up - but it's free, should give you about 2 years worth of 24hr x 1 min future data on FTSE - it goes back further if you don't mind not having out of market hours prices.
Also take a look at the application tickstory - that can download historical data and present it in any format you want.