"(without the quotation marks before and after the brackets) Then paste the information you want quoted here. Then having another set of brackets with "/quote" inside them. (again, without the quotation marks) at the end makes the quote box. And you should have a quaint little quote box.
b.) When doing a quick reply message, there's a little yellow colored speech bubble button, press it and you'll get the format for the quote, simply put the stuff you want quoted and the name of the person you're quoting and you're set.
Hope this helps!