My photos on my Iphone, will not transfer to my Vista cpu. Via Icloud

I have photo stream on my iphone, and I've had to manually make a photo stream folder on my cpu. (I'm running Vista)

All the photos I take on the Iphone end up in the photo stream folder on my phone, but never make it to my computer. I've followed all the set up directions that come with Icloud, but nothing changes.