So,
1) I tried it with the out of the box Professional theme, which brought the editor up {but has a pretty messed up navigation toolbar and a whole bunch of nonsense at the bottom, too:
Text Formatted Code
"InformationInformation - Displays the contents of a staticpage., [staticpage:]InformationInformation[staticpage: id alternate title] - Displays a link to a static page using the static page title as the title. An alternate title may be specified but is not required., [link:]InformationInformation[link: id alternate title] - Displays a link to a Link from the Links Plugin using the Link Title as the title. An alternate title may be specified but is not required., InformationInformation - Displays a poll for voting. Class and showall not required. Class specifies the css class and Showall if set to 1, shows all questions, InformationInformation - Displays the poll results. Class not required. Class specifies the css class., [poll:]InformationInformation[poll: id alternate title] - Displays a link to a poll using the Poll Topic as the title. An alternate title may be specified but is not required., [event:]InformationInformation[event: id alternate title] - Displays a link to an Event Link from the Calendar using the Event Title as the title. An alternate title may be specified but is not required., [youtube:], [story:]InformationInformation[story: id alternate title] - Displays a link to a Story using the Story Title as the title. An alternate title may be specified but is not required., [user:]InformationInformation[user: id alternate title] - Displays a link to a User using the Username as the title. An alternate title may be specified but is not required."
2) Thanks for the links...I'll go look there for clues. (And, if you see where it's messed up, specifically, that'd be great to know. But http://www.geeklog.net/docs/english/theme.html#changes is a helpful reference, and I'll get it, eventually.)