FAST CGI or FCGI issue with my htaccess

Well I went and added FastCGI and Xcache to allfreechips to speed things up a bit and of course one thing wont allow me to make the switch. my .htaccess containd a %{Querry_string} for a rewrite condition. If this in the htaccess ALL my rewites stop working.

I really can find no repeat issue on the web nor a solution!