Incluir filtros de tipo Elección en la búsqueda avanzada (webpart)

http://spadvancedsearch.codeplex.com/ 

también funciona para MOSS2010.

Personalizar página de resultados de búsqueda

http://www.sharepointdevwiki.com/display/sp2010/Removing+metadata+from+SharePoint+2010+search+results
http://sharepointfoundation2010.blogspot.com/2010/08/customize-search-results-in-sharepoint.html

http://www.sharepointer.es/2010/01/moss-2007-personalizar-resultados-de.html

Este link: http://www.zimmergren.net/archive/2007/10/28/moss-2007-customize-the-search-result-using-xslt-part-3-customize-using-sharepoint-designer-2007.aspx

http://blog.jesskim.com/kb/420

http://www.wssdemo.com/Blog/archive/2006/12/22/customising-sharepoint-search-moss-only.aspx

http://www.google.cl/#q=sharepoint+2010+metadata+search+result+custom&hl=es&safe=active&biw=1280&bih=907&ei=JXq4TMWwIMP58Abnrey4Dw&start=30&sa=N&fp=d344f3e1a11fda42