My steering stopped-at first it stopped turning left and then it stopped turning

It is very kind of you to try and help me. I heard a rolling sound a few weeks back. Is it possible that a cap fell off the fluid reservoir? I looked up steering rack, but so far, found no pictures. I will add fluid to see if I can drive to have it fixed or do you think that I should have it towed to protect pumps and whatever other parts are involved in steering?

Here's a picture of what it looks like: http://www.buy-steering.com/viewpicture.asp?partid=80-00855&code=R Your best bet would be to have it towed to a reliable Subaru mechanic, simply because a failed steering can be a cause of an accident if you try to drive it and it doesn't turn. Good luck