Failed to install ushahidi on hostgator .htaccess file is not writable


#1

I am New to ushahidi. I installed it on xampp with no problems but I could not test all the features such as SMS and social Media integration. so I decided to hosted on a live server. Whenever I try to proceed with the installation I get the following message.
Listed below is a summary of the errors we encountered:
.htaccess file is not writable

		I changed the permissions of 

application/logs
application/cache
application/config
to 777 application itself to 755
media/uploads to 777 media itself to 755
installer/mod_rewrite/,htaccess to 777 mod_rewrite to 777 but installer to 755 if I change installer to 777 I get a ERROR 500 - INTERNAL SERVER ERROR I don’t know what to do