g1smd - 4:36 pm on Mar 10, 2011 (gmt 0)

Don't mix Redirect and RewriteRule code in the same website. Once you have used RewriteRule for any of your rules, you must use it for all of your Rules.

RewriteRule ^thispage http://www.example.com/thatpage [R=301,L]
is functionally no different to
Redirect 301 /thispage http://www.example.com/thatpage

However, using RewriteRule gives you more control because Redirect automatically re-appends the rest of the original path on to the end of the new URL.

Mixing the two types of directives in one site can cause many issues. Stick with using RewriteRule for both external redirects and internal rewrites.