Hello,
Thanks for the question on installing SSL into Magento. If you have installed the certificate correctly, then Magento will use it. Check out either How to enable HTTPS for my Magento site, or you can check out our tutorial: How to get Magento to use both regular and secure connections. I think your question was mis-typed, but I'm not sure where it's not working - frontend or backend. If you setup it correctly though, then it should work for either. Please review the installation instructions. If you have any further questions or comments, please let us know.
Regards,
Arnel C.