I am interested in using the paypal function for donations to be made to our alumni association. Do I have to enable the reunion planner to use it, or is there a way that I can embed it on another page? Any insight would be greatly appreciated.

You can easily embed it on any page of your site.

1) Generate your "Buy Now button" code at PayPal.
2) Copy it to your clipboard.
3) Go into edit mode on the site you want the button on.
4) Click the Source button in the upper left corner
5) Paste your code
6) Click the save button

Your Classmates can now make donations.