[support] reindexing a site.

Hi, I have made some changes at the database level to a site that I am developing to remove images from being indexed. Now I need to reindex the site so that these do not appear when searching, but I cannot find any documentation on how to reindex a site from scratch. I did find some references to by the looks of it an old link admin/search/reindex which doesn't seem to exist anymore. Any help will be most appreciated. Gordon.