I'm currently using the Pinboard theme and it's been great. However, I would like to modify the blog page and all the posts to use the "Content / Sidebar" template. Currently the blog page and posts are using what looks to be the "Content / Sidebar Half" template.
Is there any way to modify the existing blog posts and blog page, as well as all future posts?
For reference, here are the examples I want to change;
blog page: http://remix.thecupcakekids.org/blogs/
blog post (example): http://remix.thecupcakekids.org/2013/04/29/a-cupcake-testimony/
Thank you in advance!