On the surface:

- the logo's background is *wow* and makes it difficult to read the company name. make the text bolder perhaps...
- align your text to the left... no reason why all pages should be centered
- the site lacks a "professional" appearance. the graphics look like wordart and text formatting is inconsistent.
- You have Mail My Form.com on the "Can we help" page, why not use it also for "Contact us"?

Behind the scenes:

- Use valid code: http://validator.w3.org/check?uri=ht...nline.co.uk%2F
- SEO is non-existent. you need your clients to find you...