Linking 's keywords

Strange bug here, the plugin seems to constantly link “‘s” on the end of words in the body of my posts.
http://www.simonrochester.co.uk/21st-century-business/ look at the caption for the image.

I have a couple of custom keywords, one of which has a & in the title.

I have tried just using the work ‘and’ instead of the & but it still doesn’t work.

Please stop this linking ‘s and how can I link long chain keywords such as my company name “Rochester & Associates”??

http://wordpress.org/extend/plugins/seo-interlinking/