Mike Robinson has just compiled 10 short videos on the installation and setup of OnTime 2007.  Everything from a great explanation of pre-requisites to the download and installation of the freely available SQL Server 2005 Express Edition.  The total of all the videos is about 20 minutes, but the average length is about 2 minutes, so if you just want to see how to upgrade OnTime or how to install the Customer Portal, there's a shortcut to the appropriate video on this page:

10 OnTime 2007 Setup and Installation Videos

The Videos cover:

• OnTime 2007 Prerequisites
• Upgrading From a Prvious Version
• Installing SQL Server 2005 Express
• Configurating IIS (Internet Information Services)
• Overview of the OnTime 2007 Suite
• Installing the OnTime Windows or VS.NET Clients
• Installing the OnTime Web, Customer Portal or Remote Server products
• Installing the OnTime Services for Alerts, Emails and POP Accounts
• Setting up an OnTime 2007 Database

It's an amazingly simple way to get started with OnTime.  I can't think of a better or faster way to get start with evaluating the OnTime 2007 Suite.