Wow a whole 37 items and £1.99
How long did it take you before you had your very first sale on ebay... longer than seven days I should think.
Like most new ventures you need to give it at least 6 months and list more than 37 items over that time.....
I too have been listing for a week and have 300+ items up and running with a lot more to come (and I have sold already)
you cant expect instant results