User blog comment:DaNASCAT/Technical Update: August 3, 2011/@comment-3080486-20110805061346/@comment-3450419-20110807105300

Sorry for the late reply. .WikiHeader is the bar where your wiki's wordmark / logo appears - on here, it the one that says Wikia Community Central and the part with the Random Page and Wiki Activity buttons. .WikiaHeader (with an extra A) is the top bar with the Wikia company's wordmark, where users access their profiles.