Sarie, after you save the font to your computer:
Find where you saved the new font and select the zipped folder
In the File menu, select "extract all"
The extraction wizard will pop up, click next
Select where you want to save the file and click next
open up the control panel
open the fonts folder
From the File menu, select "install new font"
Find where you saved your font on the file list on the left and highlight the folder
The font will appear in the font list at the top and you need to highlight it
Hit "ok" and you''re done!