shining force thing

I just notice that when u play shining force predium disk

and check juilan third outfit, its the same outfit from arthur in shining of the holy ark,and by the way how do u get promoted for the second time?
To quote a Shining Force III scenario 3 FAQ from Gamefaqs:

Q: Why can't I promote my characters?

A: You can. You just have to wait until after battle 20 when Gracia evolves. Then you will be able to promote characters when they reach level 20.

Q: Does that mean I can promote characters from discs 1 and 2 that have already been promoted?

A: Yes, if they are at level 20 and have been promoted in Scenario 1 or 2.

Does that help?