It has the same functionality as the licensed version, but you are limited to entering 50 sessions. Your name cannot be displayed on any documents, and 'trial' banners are shown on all created documents.
You will be emailed a licence key. This allows you to put your own name on your invoices and pension forms. You dont need to download PennyPerfect again, and you can keep using the data you've already entered. If you haven't received your licence email within 24 hours, please check in your spam folder and check your PayPal receipt that you entered the correct email address - then use the feedback form if there's an issue.
Yes. Just download PennyPerfect as normal, but during the installation process specify a different installation directory eg "C:\Documents and Settings\Peter\My Documents". You should ensure the shortcuts on each users desktop points to the correct copy.