In the UK, contact Grey Matter. They'll sell you 4 developer licences for about 40 quid. You choose what you want those licences to be for, so you could have 4 different versions if you wish.
For better assistance in answering your questions, please read this[/url].
Hidden RBAR: Triangular Joins[/url] / The "Numbers" or "Tally" Table: What it is and how it replaces a loop[/url] Jeff Moden[/url]