kb-search.php3 - If there's an xref_tag, use it in the found item URL.
showstuff.php3 - Replace the broken tiptunnel faq link with kb-show?xref_tag.
tutorial/tutorial.html - Use kb-show?xref_tag=linux_kernel instead of idx=269.
tutorial/elabinelab.php3 -
 . Change syntax from ::TBCOMPAT:: to 'namespace eval TBCOMPAT {'.
 . Document elabinelab_source_tarfile, tb-set-elabinelab-cvstag,
   elabinelab_tarfiles, elabinelab_nodeos, elabinelab_hardware,
   and elabinelab_fixnodes, including refs to similar tb-set- commands.
tutorial/nscommands.html - Fix the anchor for tb-set-node-os.