The information note contained in the Telit EVK2 package might be obsolete.
Plese find the latest USB drivers here:
www.ftdichip.com (http://www.ftdichip.com)
> Drivers > VCP (Virtual COM Port Drivers)
www.ftdichip.com/Drivers/VCP.htm (http://www.ftdichip.com/Drivers/VCP.htm) (as of May 2010)