Hello BarbieBree11,
It sounds like you are unable to connect to the iTunes Store in the iTunes application. I would try the troubleshooting steps from the Mac section of the following article:
Can't connect to the iTunes Store
http://support.apple.com/kb/ts1368
If you haven't been able to connect to the iTunes Store, a software conflict or your Internet service provider (ISP) may be blocking your access.
- Update iTunes and Safari to the latest version.
- If you have a firewall, your settings may be preventing you from connecting to the iTunes Store. Follow these steps to configure your firewall.
- You may need to reset your keychain. Connection issues are occasionally caused by keychain issues. Learn how to use Keychain First Aid to resolve any issues with your keychain.
- If you're receiving a specific error message, follow these steps.
- If the issue still persists, contact your Internet service provider and confirm that these ports and servers are enabled over your network.
If the steps above didn't resolve your issue, be sure that your specific alert isn't listed as a possible iTunes Store error. Then, if your issue is still unresolved, follow these steps.
Thank you for using Apple Support Communities.
Regards,
Sterling