Everything else works fine.
Glad to hear.
The old theme is a little broken, but I think I can fix it.
If you get JS errors (such as '$ is not defined'), Check for <script> elements in template.php <head> section.
As of Typesetter 5, scripts including jQuery will be loaded at the end of the <body> element. If a script in the head section requires jQuery, it will fail and must be loaded/implemented via Typesetter's PHP methods ($page->head_js = [script path];, $page->jQueryCode .= [jQuery code];) See here.