I think this is the code you need:
RewriteEngine On
RewriteCond %{HTTP_HOST} ^freerolls.drawdead.com$ [NC]
RewriteRule ^(.*)$ http://freerolls.drawdead.com/$1 [R=301,L]
This should do the trick for the first one.
Anyone typing freerols.drawdead.com will be redirected to http://freerolls.drawdead.com
For the others I don’t know exactly how to handle.