Hello Jennsews2,
Without a Diagnostic Report, I can't tell if your Vista is Activated or Not, but I do not think that is the core of the problem. I recommend that you go to the "Troubleshooting Vista Service Pack Install issues" support doc at
http://support.microsoft.com/kb/947366 If that doc does not resolve your issue, click the "Contact a support professional by E-mail, Online, or Phone" link in the upper right hand corner of the page.
Follow the directions and when you come to a page with a Drop Down menu titled "Support Topic" select "Service Pack 2" and then for "Sub-Issue" select "Installation Issue".
You should them be shown a page where you can choose the form of support you want to use (Chat, Email or Phone).
Support for Service Pack install issues are supported at no cost.
Thank you,
Darin MS