Nope, I think you have Master Cei confused with somebody else, Master. He hadn't been in JO before Master Shin trained him. I 'helped' Master Shin train him, though he was always far beyond my abilities. I ended up learning more from him than vice versa, even though he was technically a little brother. Really great guy, very wise from the beginning.
I just as easily could have been a J, though I recall attaining JK 6-7 months into joining (and being quite proud of this at the time, given that I'd been a hopeful for so long), though I may be mistaken. I was accepted in March. I was indeed a JK when we played JK2, yup.
The one with the space background was the forum we moved to afterwards (the third one I mentioned!).