The program allows you to create different audio tracks and edit the pieces, so you can organize the edition from the same interface. However, mixing audio tracks is optional and if you want to start by something easier, you only have to record one track, no problem.
PodProducer allows you to add some audio effects, which can be really useful and also allows you to change some settings to optimize audio quality.
Download it, and when you'll run it you'll realize everything is easy. IT is a very simple program that can solve many problems when creating a podcast, even if you are a novice.