Hello Dawnkrull,
You can set up a shopping cart.
First you have to create an account with Paypal so that you can facilitate online payments.
Then you have to retrieve the codes for adding the paypal buttons to the Paypal option in modules.
You can add the paypal button codes by these steps.
1. sign into your Office Live account
2. click on design site in the center of the page.
3. on the page manager click on edit for the page you want to edit.
4. Go to page editor, click on modules.
5. In the drop down, click on PayPal.
6. A new window will pop up, paste your code in the window and click on OK.
refer to this link.
http://office.microsoft.com/client/helppreview.aspx?AssetID=HA102873321033&ns=OFLV20&lcid=1033&QueryID=0a6F4vjZZ&respos=1