Thats better that tells you exactly what's wrong.
As a quick workaround untill you clear up the mod_rewrite syntax is to just quickly rename the .htaccess files to say temp.htaccess. Then you can start your server.
You will have to read up on the mod rewrite syntax to fix it.
is a good starting point.
A google for key words apache mod_rewrite
will give you lots of reading
You will also have to make sure the mod_rewrite module is accessable by the server by checking the httpd.conf file.
#LoadModule rewrite_module modules/mod_rewrite.so
LoadModule rewrite_module modules/mod_rewrite.so
This may be enough to get you going and you should check this first.