A Yahoo! engineer once said to me, “The most important feature of Apache httpd is mod_rewrite. It allows large sites like ours that have frequent content structure changes to be controlled with redirects.”
But mod_rewrite seems as stubborn as a mule sometimes …
A technique that I use is to take a cookbook entry and work backwards. Instead of trying to make everything work at once, hard-code in a result I want and then gradually generalize the rules to handle more matches
