There is another cat on youtube with a similar problem. Do a search on "disabled cat" and I think you'll find it. The lady has posted videos over a period of about 10 months.
There are a number of videos of cats with various disabilities. There's one of a cat with cerebellar hyperplasia (or is it hypoplasia?). Anyway, the owner clearly loves it, and the cat is plainly happy.
Here is another sweet one: Red the Kanga Cat. The owner says it lost both front legs in an accident, but he's clearly doing well.http://www.youtube.com/watch?v=JcF-tRf0q6A
By the by, there is a really excellent book about a cat without front legs. One of the best books I read in high school. The title is "Uncle Whiskers."