Sometime ago someone referred to a file on another web site called "The Diaper Controls You". The file contained a hypnosis script of sorts, which I found interesting and amusing.
I used to do a lot of work with young children and had to develop a good 'story telling' technique for using hypnosis with them.
I modified the file to make it non-gender specific, and improve the pacing so it's more effective. I do believe it would be a good hypnosis file to put you back in full time diapers and have you wet and poop your diapers as a good baby should.
I uploaded the modified script to the files section so you can review it if you wish. If there's enough interest then I'll record and upload the file here.
Regards
MindMaster