Help with factory restore for Sprint Mogul with OLD firmware

[bobturismo]

I did a lot of searching, but a lot has happened since I put a custom firmware on this thing.

I wanted GPS with Google Maps, so I installed custom firmware to do so. At the time, there was no support for this from Sprint. I believe there is now, correct?

As far as I can figure I "unlocked" the phone and then installed custom firmware. Installed HTC home and all kinds of other apps, some good, some the may have cluttered up my registry and phone in general.

I want to completely start from scratch and install whatever the hottest setup is. I guess what I need to know is "is my phone unlocked?" do I need to "Re-lock it" and how? Do I have to install the factory firmware before upgrading to the newest?

Details about phone:

On start up, in red letters it says

P DCAAXAM-43508
R 3.27.00
D 3.16

On the Green screen it says "Windows Mobile Version 6.1"

If I view the details by dailing into the secret menu it has:

software version dcd 2.1.0
hardware ver 0003
PRI ver 1.23_003
firmware vers 3.27.00