MOSS Search for usernames in fields like Modified by or Created by

MOSS Search for usernames in fields like Modified by or Created byhttp://developers.de/blogs/nadine_storandt/archive/2007/11/29/moss-search-for-usernames-in-fields-like-modified-by-or-created-by.aspxHey guys, If you have configured your portal and search and then try to find a document, where u know the User which has created or modified this one you will find nothing per default. The Properties in the advanced Search for fields like created by orenCommunityServer 2008 SP1 (Build: 30619.63)