Well, there are two ways you could do it. You can make use of a section break, not a page break. Or, you can reverse the order within the Microsoft word document so that page five is the first page in the document its self. Then proceed to do the ordering like that.
http://office.microsoft.com/en-us/word-help/restart-or-continue-page-numbering-HP005230692.aspx?CTT=3
I'd suggest reading this as not only is it useful, but it walks you through how to do it. The instructions are for "Start page numbering with 1 after the first page", "Start page numbering with a number other than 1" and "restart page numbering with 1 for each chapter or section".
office.microsoft.com is actually a VERY useful and informative website. If you don't know how to do something, then there's likely an article on it and how to do it.
http://office.microsoft.com/en-us/word-help/ins-and-outs-of-page-numbering-in-word-HA001116514.aspx?CTT=3
(Ins and outs of page numbering in word)
I hope this answers our question,
~Barolb