Hello, I'm using Joomla + Joomfish + JoomSEF and I need some help with rewrites.

1. Joomfish added country code after domain name (like www.domain.com/en) - I need to rewrite another language to subdomain - e.g. main language of site remains as is, another language is rewrited to countrycode.domain.com or seconddomain.com . Can anybodoy help me with it?

2. Second case: I've added new domain to my server, I would like to redirect (301 redirection) new domain to old domain.
Unfortunately somethin like this:
RewriteCond %{HTTP_HOST} newdomain.com
RewriteRule ^(.*)$ olddomain.com [R=301,L]
in .htaccess causes that all pages with newdomain.com in name are redirected to mainpage of olddomain.com e.g. newdomain.com --> olddomain.com (all right) but newdomain.com/en/link-to-article --> olddomain.com not for olddomain.com/en/link-to-article.
Can anybody knows how to fix it?

I'm looking forward for some advices.

regards
Mariusz