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My advice there still stands, with one exception: the computer will automatically give you team members with as many of the powers/skills as possible during Replay Mode, so you don't have to avoid buying new characters.
If you have questions beyond what is in that thread or the partial Walkthrough on the FAQs page, I check this board occasionally and can try to help. Be sure to post the specific Year and Chapter in the game, and try to be specific when describing the problem.
Solei: "Adell, since you're a tough guy, you don't do anything cowardly like saving, right?"