From what it seems, the STATSoft website is still available, but the company is under DeLL's management. The website is functional, and you can find all the necessary data. Additionally, there is the possibility to request a trial version of Statistica by filling form.
Use the following website to reach the desired page: http://www.statsoft.com/
Note: Make sure to provide real information when filling the form so they can approve the trial request faster.
