Remove or Hide Image from a post

Hi,

I started using a new theme, chocolate theme, I am facing a bit of a trouble, when I am adding an image for the main page (blog), it is automatically being added to the post (single post) which I don’t want happening.

I am adding another image to the post which is the same image<< reason being is that blog aggregators read the image I add and not the image that is added automatically

my blog: http://www.klamtam.com
example of the problem: http://www.klamtam.com/archives/ruby-tuesday-electric-lemonade

anyone can offer help in regards?

thx!