I posted a thread the other day asking for help with why I wasn't ranking on google anymore, and was helped... however... I have now managed to break wordpress.
I needed to fix the leverage browser? I followed the instructions on http://forwpblogger.com/tutorial/how-to-leverage-browser-caching-in-wordpress/ and pasted the info into the .htaccess file. and saved it.
I am now unable to get into my wordpress account. I get an internal server error 500 message.
I have NO idea how to fix this... :(