http://www.domain.com/old-name-here?manufacturer=445 should display as:
http://www.domain.com/new-name-here/brand-name
If I enter the following htaccess code:
Redirect 301 /old-name-here?manufacturer=445 /new-name-here/brand-name-here
It does redirect properly via 301, but it keeps the query string on the end and only redirects the 1st folder...