I am using the first method here http://www.webmasterbase.com/article/485 to let google and other search engines feel that www.abc.com/what.php?a=1&b=2 is www.abc.com/1/2. But I am having my httpd error_log filled with error messages (just like the article said).

I tried to implemet method 3 but it did not work.

Is there a way to stop apache from logging those visits as error reports? Thanks.