WP-Minify

A opção Use "pretty" URL" (i.e. use "wp-minify/cache/1234abcd.js" instead of "wp-minify/min/?f=file1.js,file2.js,...,fileN.js") do WP-Minify não funciona comigo! Então decidi reescrever a URL manualmente com o .htaccess. Mas tentei de várias formas e nunca muda!

CSS URL
[%BLOG_URL%]/wp-content/plugins/wp-minify/min/?f=[%URL_CSS%],[%URL_CSS%],[%URL_CSS%],[...]&m=[%NUMEROS%]
Ex: meublog.com.br/wp-content/plugins/wp-minify/min/?f=wp-content/themes/[%THEME%]/style.css&m=1313297820

JS URL
[%BLOG_URL%]/wp-content/plugins/wp-minify/min/?f=[%URL_JS%],[%URL_JS%],[%URL_JS%],[...]&m=[%NUMEROS%]
Ex: meublog.com.br/wp-content/plugins/wp-minify/min/?f=wp-includes/js/l10n.js,wp-includes/js/jquery/jquery.js&m=1313330347

O que eu colocaria em RewriteRule para que a URL fique dessa maneira:
CSS URL [%BLOG_URL%]/CSS.css
JS URL [%BLOG_URL%]/JS.js