[Ygrex]

Sure, I've read these pages, but not all questions have become clear; therefore I've sent mails to the mailbox from the bottom-left corner of any your site

the first:

Date: Fri, 11 Dec 2009 17:46:12 +0300
To: sales@ispsystem.com
Subject: кластерная версия ISP менеджера

the second:

Date: Tue, 15 Dec 2009 15:27:13 +0300
To: sales@ispsystem.com
Subject: ISP manager cluster

the third:

Date: Wed, 16 Dec 2009 13:33:53 +0300
To: sales@ispsystem.com
Subject: is this email valid