WordPress taking over my site (WP2.0 and .htaccess)

I’ve just upgraded to WordPress 2.0 and most things seem to be working well. I’m just having a bit of trouble with the default redirects that WordPress suggests for my .htaccess file.

My blog is set up at the top level of my site (http://www.caboose.org.uk/) so the .htaccess for permalinks has to go at the top level. This has other stuff in it, so I modify it manually and don’t let WordPress write to it.

Since the upgrade the suggested redirect lines are:
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php
</IfModule>


This means that for any page on my site that doesn’t exist I get my blog appearing instead of an error page. I don’t like this.

Is it possible to make WordPress behave itself (only responding to relevant requests) without moving everything to a subdirectory and therefore breaking links?

Kevin