Everything is set up right. I've followed articles like this, or maybe this. I've full crawled a million times, but I still can't get my managed property to display in the search core results web part.
First, double check search is crawling your content properly. Go to Search administration -> Metadata properties and click the name of your metadata property. There's a section here labeled 'Content using this property'. 'Number of items found using this property' obviously should not be zero. If it is, take a look your managed property configurations. Also, confirm you've actually set the value somewhere in your site and, if in a publishing environment, make sure everything is published and approved.
Second, go to the search box in the site and search for MetadataField:AValueYouKnowExists. The results should be as expected. Items with your MetadataField = AValueYouKnowExists should appear in the results.
Lastly, double check the Search Core Results XSLT. Make sure you've got the proper <Column Name="MetadataField"/> tag. Also, make sure you're using the right metadata property name in the <xsl:value-of> tag. This tag is case sensitive. If you don't get the case right, it's not going to work. The easiest way to check the case is to edit the Search Core Results web part and put <xmp><xsl:copy-of select="*"/></xmp> into the section labeled <xsl:template match="Result">. This is going to display all the XML nodes and the values contained in the results. Refresh your MetadataField:AValueYouKnowExists search and look for your metadata property.
