[TYPO3] Adding a keyword into the RealURL address

[rodrigo cea]

My dearest typo people,

I admin a film site, which while well placed in google for individual 
movies  is somewhere near #178  for our most important keyword ("cine", 
"film" in spanish) within Chile. I have noticed that most well-placed 
sites for a specific keyword include the keyword in their URL. It's too 
late to change our domain, so I am thinking of adding "cine" to all our 
pages' URLs. What would be the quickest, most painless way to do this?
I realize I could create a new page called "cine" and put all the other 
pages in it, so the URLs would look like 
"www.lafuga.cl/cine/nameofpage", but I am wary that this might break 
some incoming links. Is there a way to do this and still maintain the 
integrity of existing links?
The DNS has "lafuga.cl" set as a catchall, so anything.lafuga.cl always 
goes to the front page, so I'm thinking of changing the "www" for "cine" 
(so the homepage would be: "cine.lafuga.cl"). How do I configure this?

Thanks,


Rodrigo C.
----
Converting Chile to an all-typo nation, one site at the time.