We have been struggling with this DNN install using the Blog module and just today tried to update to 3.5 but the same issue still exists.  You can see the module installed here: http://smilespinners.com.  Try clicking the entry title or Read More and even comments doesn't work.  We have tried deleting the page, uninstalling the module, looking in the database tables and we are at a loss.  If anyone could help, we would be grateful.

I just created a portal on this DNN install and added the blog module to that portal and it works fine.  So the question is if Catalook is the culprit or if this original DNN install has something wrong with it.  I will just install the skin and use the portal for their blog site.  Got to love work-a-rounds.  Thanks for your suggestion that propted me to try this approach.

Catalook has verified that the problem was with the Catalook Menu Module located on the pages.  This is their response:

The menu module adds the list parameter to the actual URL if you select a list type in the module settings. But the blog module doesn’t know this parameter but uses the URL to communicate with the other parts of the blog module package. Therefore the list parameter will not be included with any of the commands. Now if you select any command of the blog module, the page reloads and the menu module checks the URL again and if the list parameter is not there, it redirects the page to an URL that includes this parameter but not any command parameter of the blog or any other module. This also overwrites the start query settings of the CAT_ItempaneNF module.