GoAutoDial (3.3 64bit) Default logo & Web CSS update

Hello there
I have downloaded "goautodial-64bit-ce-3.3-final". What I need is to change the default goautodial logo with my custom logo and change the basic web CSS layout.
Please guide me how to do this and exact path of the folders. Do I need to first install the vicidail or it can be done just with the downloaded code.
Thanks,
I have downloaded "goautodial-64bit-ce-3.3-final". What I need is to change the default goautodial logo with my custom logo and change the basic web CSS layout.
Please guide me how to do this and exact path of the folders. Do I need to first install the vicidail or it can be done just with the downloaded code.
Thanks,