One of the things that can help solidify your brand as a podcaster is great images.
At the very least you need a nice 300x300 image for iTunes and other sites including Blubrry. You'll also need a good header image for your blog or your Blubrry podcast profile.
Most podcasters who are just getting started don't have much of a budget. That means hiring a graphic designer is pretty much out of the question. So is paying several hundred dollars for an image editing program. Luckily there is an alternative.
If you're a Windows user you should check out Paint.net. Paint.net is a free photo editing tool that continues to get better with each update.
Head over to
http://www.getpaint.net/ to get more info and download this very useful application.