Thanks very much for the advise. I rung up my previous insurance company and fortunately I had protected my no claims back then and had 8 years protected-this does count as my policy ended in Jan 2006 so under 2 years ago which is a huge relief. I have got a letter from my work saying the only 'claim' made in the period I have had the lease car was for a broken mirror but because it was under the policy excess, it was not put through the insurance company. I also rung another insurance company, Churchill, who were very helpful and they confirmed they would count the previous 8 years no claims and would just make a note of the lease car policy period.
So hopefully won't be paying a fortune for car insurance!
Many thanks for your replies
Best wishes
Nikki