Blaine I updated to 2.3.2 (by uploading the new versions of the changed files in changelog) and I don't get the post reply button in locked topics for admin still. I'm not sure if this is just me or a bug.
If you have the latest include/gf_showtopic.php, updated language file and edit rights to the forum - you should see the new permssions. Assuming the post is locked.
Geeklog components by PortalParts -- www.portalparts.com