I can give you the overview of the process and hopefully kickstart something that will get a post with more detail:
You will need to add a CQWP to the page and configure it to pull posts. Then you will need to export the webpart and modify the fields it is pulling in. By default you only get the titles, you need to configure it to get the "rich html" field which is the body of the posts. Re-upload the new webpart, add it to the page. You can style it via XSLT.
You have to do this to modify any default query done by the CQWP that you want to modify.
I do not believe the post comments can be pulled along with this.
Eric Swinson provides a walk thru of this exact scenario here: http://erikswenson.blogspot.com/2010/03/sharepoint-2010-content-query-for-blog.html