Create a Managed Property and map it to a Crawled Property

http://technet.microsoft.com/en-us/library/cc262933.aspx
http://meiyinglim.blogspot.com/2007/01/displaying-correct-titles-of-lotus.html
http://dotneteers.net/blogs/aghy/archive/2008/08/29/moss-search-custom-search-pages-and-property-mappings.aspx
http://www.mosssearch.com/searchcolumn.html