mutags sub-domain problem

I have installed the mutags latest version. It pulls all the tags and even displays them in a page result. But I can only click on the local (main) blog search results. Posts from other sites redirect to the same page.
Take a look at:
towards the bottom right hand side is the tag cloud. Click on gizzy or
the first result is a post within the main site. It links fine. The second post is at and it does not link at all.

please help. I signed up here just to solve this problem.