Moved wordpress – what to put into .htaccess?

Hi all,

mod_rewrite is doing my head in.

Until the other day, I was running WordPress 1.5.2. It was installed in http://thinkdrastic.net/journal/

The other day, I upgraded to 2.0.1, and in the process moved the front page to http://thinkdrastic.net/ – though the install remains in /journal/

What do I need to put into .htaccess to redirect users of the old RSS feed (http://thinkdrastic.net/journal/wherever 1.5.x kept it) to the new location (http://thinkdrastic.net/feed/)

Thanks,

Olly.