There are a couple of websites where you can enter your vehicle details and it will confirm your insurance status and also tell you how much your road fund will be and when it is due for renewal......
ASKMID - http://www.askmid.com/askmid.aspx
(then click on VEHICLE ENQUIRY)
Road Fund Checker
DVLA Vehicle Licensing Online - http://www.vehiclelicence.gov.uk
There are warnings on the websites that you're only supposed to check your own vehicles!
Apparently the insurance database is linked to the one that the Rozzer's use, so it's good to check that they aren't gonna pull you over for not having insurance