Awesome guide. Just wanted to say that I successfully flashed using this guide, and got working 3g keys for my device. Thanks ryoung4316, could not have done it without this.
I did have an issue when flashing the "Mobile IP" settings in DFS, where it would not accept any changes to Profile 0, and would revert to using Profile 1 after the reset step. I eventually solved the issue by just using Profile 1 (and disabling all other profiles), and setting "Active Profile" to "1" instead of "0".
Also, the new versions of DFS have a different layout than the guide for entering the AAA/HA Shared Secrets, so watch out for that.