If you have a jailbroken iPhone or iPod Touch you may come across custom applications that you would like to install via iTunes so all of your applications are still managed in one place. I originally thought that I would just be able to drag the applications directly into iTunes, sync my iPod Touch with iTunes, and begin using my new application. I believe this used to be the case before iPhone OS 3.0 was released which is the version of firmware installed on my Touch. Anyhow I attempted to proceed by following the below steps and ran into an error also noted below.
I have a second generation iPod Touch that is out of warranty and the power button is broken. Figuring out how to get the Touch into DFU mode was not easy as there are numerous hints out there at how to do this but most say things will break if you are running firmware 3.0+.