Found a bug and a few instruction problems, so I'll note them down to save you some time:
1) If you make a member a MegaMod and then authorize them to access a private forum, this turns them back into an ordinary member. Can be fixed by updating the CP MegaMods list a second time, just tedious.
2) The list of files to be edited in your instructions is missing a ton, it should be:
CGI-BIN: cp.cgi cp_forums.cgi ubb_lib.cgi ubb_lib_posting.cgi ubb_lib_secgroups.cgi ubb_new_reply.cgi ubb_new_topic.cgi ubb_pm.cgi ubb_pntf.cgi ubb_poll.cgi ubb_profile.cgi vars_worldslets_cp.cgi (no need for vars_worldlets.cgi to be listed, not edited)
3) You should also try to fix some of the first 50% of instructions, which seem to have line breaks and could cause problems for those less familiar with UBB HAcking.
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