ShareThis has tracks that you can add to: expr:st_title='data:post.title' expr:st_url='data:post.url' to each button, forcing the share buttons to share the link in the message instead of the link in the browser.
The code will look something like this:
< span class='st_twitter_hcount' expr:st_title='data:post.title' expr:st_url='data:post.url'/> < span class='st_facebook_hcount' expr:st_title='data:post.title' expr:st_url='data:post.url'/> < span class='st_googleplus_hcount' expr:st_title='data:post.title' expr:st_url='data:post.url'/> < span class='st_linkedin_hcount' expr:st_title='data:post.title' expr:st_url='data:post.url'/>
This should also solve the image problem.
source share