Форуми / Cotonti / Support / url mod_rewrite page_add bug

I've tried Lombi's solution ( http://www.cotonti.com/forums.php?m=posts&q=2509 ) but unfortunately, when I rewrite
http://www.sangelo.net/list.php?c=category1
with
http://category1.sangelo.net
my Server redirects me to a courtesy page What's the problem?

Added 16 minutes later:


In the end, I would have a new method deriverd from your one (to create fake subdomains taking domaniname from the fisrt category of categories structure)...

Instead of (your actual method):

http://www.mysite.net/list.php?c=cat1 ==> http://www.mysite.net/cat1/
http://www.mysite.net/list.php?c=subcat1 ==> http://www.mysite.net/cat1/subcat1/
http://www.mysite.net/list.php?c=subsubcat1 ==> http://www.mysite.net/cat1/subcat1/subsubcat1/
...

like this:

http://www.mysite.net/list.php?c=cat1 ==> http://cat1.mysite.net
http://www.mysite.net/list.php?c=subcat1 ==> http://cat1.mysite.net/subcat1/
http://www.mysite.net/list.php?c=subsubcat1 ==> http://cat1.mysite.net/subcat1/subsubcat1/

Is it possible?