You need to put that code before the WP code, otherwise it'll never fire (the code is executed in order). Also, get rid of the <IfModule ...>...</IfModule>, you don't need it
Code:
# Options +FollowSymlinks
RewriteEngine On
RewriteBase /~easters2/
RewriteCond %{HTTP_REFERER} sixdollarclick\.com [NC]
RewriteRule .* - [F]
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /~easters2/index.php [L]
<files wp-config.php>
Order deny,allow
deny from all
</files>
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