I have recently joined a new software development company and they currently use TFS to create PBI's and Bugs and they do not include tasks. I want to be able to utilise the scrum tools available in TFS (2013) so as I can see burndown charts and metrics etc. Is there any way to tap into these tools without using tasks? I want to see if this is possible before I start changing their process.
It seems like your TFS project is using the "Scrum" process template.
You could create another project (or modify the current one - which is harder depending on the TFS version that you have) and use the "Agile" process template that has User Stories (instead of PBI), burndown chart in the Iteration overview, and other definitions.