Adding provisioning profile to organization windows for os x application

Hello Everyone,

I'm working on 10.7.2 with iCloud beta 6 to create a test application to test iCloud functionality. I have created provisioning profile but i'm not able to add it in Organizer window.Can someone suggest me on this .please note that all this i'm doing for my mac os x application not for ios. and also in build setting when i'm adding provisning profile name as "code signing identity" it's giving error "there is no matching certificate or private key pair is available" it's just taking 3rd part application certifaicate. all this make me very cofused.

thanks to all of you.