If your sending it to a company, just put the name in like you would a check, or if your sending it to someone you know just leave it blank and have them put the name in they want.
You could always e-mail the company or look at their FAQ to make sure you filled out the money order right.
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The line on the money order should say something like Pay to, or Payee, thats where you put the company name, or the individuals name your sending it to.