Re: tiki theme using tikiwiki 2.0
The TikiWiki core files are being trimmed down in terms of bundled themes in order to better assure the quality of the themes that are included. (In the past, bundled theme files weren't updated consistently so were often more or less buggy.)
Also, there are quite a few significant changes in the template files, etc. from TikiWiki 1.9.* to 2.0, so old themes will definitely have some problems unless they are modified to bring them up to date.
About the module titles, they have been changed from div.box-title to h3.box-title, for better semantic organization of the page. This particular detail was one of the things pointed out to us by the Mozilla support site team, one of the benefits of their choosing Tiki for their site.
If you use an older theme, be sure to choose "use transitions css file" on the Look & Feel admin page. This will load a stylesheet that contains most new selectors added since 1.9.
-- Gary
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