Adding truncated posts in widget on side

I am managing a site for a client at http://vtio.org.au. Someone else set it up and now I’m looking after it. I want to shift the posts into the widget on the right hand side so that some of the important stuff relating to the organisation is on the home page, to try and encourage more memberships for them.

Is there a plugin or something I can use that will add recent posts – other than just the titles that are showing up under ‘Recent Posts?’