I've seen a number of errors in the past where the template directory name is altered by the users web server when it is installed - an example would be that we zip up a shiny new template in a folder called BlackBear1.5 but when someone goes to install it their server creates a folder called blackbear15 - all lower case and with the period removed.
If you get plain white unstyled pages coming up check the directory name and then check the template index.php to make sure the path to the css is correct - i.e. that it has the same name as the directory that your template sits in on your server.
We'll be aiming to simplify our template nameing and I won't be putting a '.' into the name from now on
