You helped answer my question, so thanks for that, but then you also made a comment that was wholly unnecessary for no real reason. Because I don't know how to do one specific thing (and if it never came up as something that I had to do, why should I absolutely know how to do it? I've learned photoshop through experience, not reading how to use its features), you automatically assume I'm going to make a crappy tutorial? Thank you very much, I appreciate that greatly.
EDIT: And anyway, all that lets me do is move the text around, not center it in the graphic like I wanted to.