I have tried to watch the video asha but I can't get onto the blog at the moment.
It's normal for the butter to look curdled and white - it's at this stage, as soon as it has separated that you stop the beating process and start the rinsing steps. Fresh cream just takes longer that's all, it is still OK to use. By continuing to beat it you have incorporated the whey back into to it and I'm not sure what you have ended up with as that has never happened to me. Not sure what you can do to try to save it - someone has probably been there, done that and may be able to give you the answer.