here some HTACCESS trics i've done with Website Baker.
ad a 404 page within website baker by pointing it to a web page, more in my topic about "
How to make legit 404 error page"
Make html parsable as PHP, so you can set your settings to have your page extension to ".html"
AddHandler application/x-httpd-php5 .xml .php .htm .html
or
AddHandler application/x-httpd-php .xml .php .htm .html
depending on your hosting
if you use fancybox with your template, there is some problems within Internet Explorer, this is a trick to fool IE to know where your fancybox is. (change the path to your fancybox)
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^Mozilla/4(.*)MSIE
RewriteRule ^fancybox/([^/]*)\.png$ /path/to/fancybox/$1.png [L]
Compress all content, manually excluding specified file types (if it's not already done within apache configs)
<IfModule mod_deflate.c>
SetOutputFilter DEFLATE
SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png|rar|zip)$ no-gzip
<IfModule mod_headers.c>
Header append Vary User-Agent
</IfModule>
</IfModule>
enable you to have your google sitemap as "sitemap.xml" instead of "google_sitemap.php"
RewriteEngine on
RewriteRule ^sitemap.xml$ google_sitemap.php