Hi Adele,
This site is all for listing 0800 numbers aswell as geographicals. I have added some 0800 and geographicals (ie, no 084x/087x numbers) to the database when I find them.
If you are still after a geographical in place of a 0800, then I suggest that you post a request.
Also, there are a couple of 020 dial-through numbers you can use to call 0800 from mobiles at geographical rates (ie out of inclusive minutes, if applicable). Have a look in the Cheap Call Providers section.