Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
The cord is just a standard mini usb cable, you may have one from an old cell phone that would work also,
otherwise you can buy one here: http://amzn.to/1QZkvJB or http://amzn.to/1JfGcT6
The software is not at all required, and is quite limited in capability anyway, you can just as easily plug the camera into your computer, put it into playback mode, then view the contents on the now available camera "drive" in your Computer folder.
If you want it though, you can get it here: http://www.canon.co.uk/support/consumer_products/products/cameras/digital_compact/powershot_sx_series/powershot_sx50_hs.aspx?type=download&language=&os=WINDOWS%207%20(64-bit)