I am one that had a dog with a torn ACL. Or supposedly it was a torn ACL.
We could not afford surgery so I researched and found a site that told how to help it heal without surgery.

Here is a link to the thread I started on Zoee.
http://petoftheday.com/talk/showthre...&highlight=ACL

And here is the website I referenced.
http://tiggerpoz.com/

This required us to leave Zoee at my moms house so she was under 24 hour supervision (since my parents are retired) for an entire year.
After that year she would still have times that she would limp. However, now that I'm thinking about it, right up until we just lost her last September she was not limping at all!
She was getting older and had other aches and pains. But that leg was not bothering her anymore.

Good luck!!!