How can I format my Word doent to have two different page numbering systems?

Click on the bottom of the last page of the first section, then click "breaks" under the Page Layout tab. Choose create a section break on new page option, that splits the doent. Then, you can format page numbers separately for each section -- make sure you uncheck "continue from previous section". Should work, but if not, there are specific instructions for this in the Word Help (little question mark in a blue circle on the top right)