Blog Excerpts Not Showing

Hello

I inherited this site a few months ago and am working through some changes the customer has requested. Please take a look at http://www.complete-it.co.uk/blog/ and you will see the blog excerpts are not showing. I can't figure out for the life of me why not and so wondered if you could take a look for me incase there is something in the custom code somewhere that is causing it? I have granted you support access.

Thanks

Allan