Hiawatha has no equivalent for this:
RewriteCond %{REMOTE_ADDR} !^(110\.174\.129\.147|203\.217\.17\.162)
RewriteCond %{HTTP_USER_AGENT} !(Googlebot|msnbot|Surp) [NC]
The other two lines will be this:
Match ^/(.*)$ Redirect http://www.website.com/$1
Match ^/brands$ Redirect http://www.website.com/brand
However, the first line does what the second like does. So, the second line is obviate.
The rule from your last message is this:
Match ^/brands/(.*) Redirect /brand/$1
To learn to do this yourself, learn about regular expressions and read the Hiawatha manual page. It's all in there.