DP asked if there were any way to force the registration and schedule pages to "automatically update" (i.e. user always sees what's on the server and not what's in the browser cache). Simplest solution seemed to me to add appropriate tags to the head of relevant files, so that's what I did:
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="Pragma" content="no-cache">
Also explained to him briefly some of the different ways sites have of updating themselves automatically (e.g. ex.com money exchange site, news sites) and what the pros and cons of those are.