[Oleg Krylov]

А у вас точно установлены пререквизиты? Судя по логу установки - нет:

12:55:03] Prerequisites for Microsoft Exchange Messaging and Collaboration Services failed: The component "Microsoft Exchange Messaging and Collaboration Services" cannot be assigned the action "Install" because: - The NNTP component of Microsoft Internet Information Services (IIS) is either not installed or disabled - The SMTP component of Microsoft Internet Information Services (IIS) is either not installed or disabled - Microsoft Internet Information Services (IIS), version 5.0 or higher, is either not installed or disabled - The World Wide Web Services component of the Microsoft Internet Information Services (IIS) is either not installed or disabled - Setup has detected that ASP.Net v1.1 or above has not been enabled. This component is required for the installation of Outlook Mobile Access. Please goto Control Panel->Administrative Tools->IIS, select folder Web Service Extensions, select ASP.NET from the list and click on Allow to enable it.

Второй момент: вы же установили Active Directory Connector и реплицировали данные каталога Exchange 5.5 в Active Directory?
Лог пишет странные вещи...

Warning: ADCObjectCheck detected that some objects were not replicated from the Exchange 5.5 directory to Active Directory

Если установили, проверьте утилитой ADUserScan - все ли у вас хорошо с репликацией объектов.
Довольно путанное объяснение на русском языке по процессу установки вот тут:
http://support.microsoft.com/kb/812593/ru
Пробегитесь, проверьте - все ли шаги вы выполнили корректно.