Using C4ds

Hi there
Well I know how to use Photoshop CS2 but I am new to the C4D aspect so I hacve downloaded a few but I was wondering how do I remove the C4D bit from the black background they are set into. Sorry if this is a kinda dumb question but I don't know how to do it.
Thanks for your help and time.

 

set it to lighten or screen

 

Or if your REALY bored you can always render the c4d

 

Any Dodge (Linear or Color) works also.

 

Thanks for all the replies...I now understand xD
Thanks again.

 

i don't use photoshop i use gimp but i herd somewhere that u can add an alpha channel to it then delete the dark in it to get rid of the black..maybe im wrong though..