problem how to bypass and download www.camwhores.tv private videos

Well "private" would probably be controlled by an ACL ( access control list), Some sites suck like you might be able to see where the video is hosted or if you find the video file you can download it, being that you have the URI. Mind you not all sites suck to this level right, you can also change the "referer: in the http headers, something like 127.0.0.1 sometimes works also, I am not sure if you are literally just trying to grab some pr0n and that's about it or you are looking to actually access private videos/data in terms of "hacking". I'd also check for hidden tags, if you can download other videos there is a good chance that the private videos just have the download button "hidden", I'd kind of look at the source code it helps if you know coding because there is a myriad of issues that can arise if DACL/ACL's are not correctly set.