Need help deleting an application on my Mac !

Hello im trying to delete this CrashPlan application that I have on my Mac. Problem is that when i press get more info, it gets me the info about it but when i uncheck the lock option... it unlocks itself but then locks right back again !!! I am really getting frusturated with this !! please help asap. thank you. Even when i try to move it to the trash it wont let me because i do not have the permissions to do it ! when i try to change the permissions in the get info menu there it lets me pick the permission but it wont change itself ?!!!! Please reply !!! Thanks