Hi all. then I try to install the SCCM, SCOM or SCSM Integration Pack I recive the next event. Can anybody help me? 

Windows Server 2008R2, at other action server IP was installed without problem/

Log Name:      Application
Source:        SideBySide
Date:          1/24/2011 1:55:00 PM
Event ID:      33
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      opaliss.demo.local
Description:
Activation context generation failed for "C:\Program Files (x86)\Common Files\Opalis Software\Opalis Integration Server\Extensions\SCServiceManagerClientExtension.dll". Dependent Assembly Microsoft.VC90.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.21022.8" could not be found. Please use sxstrace.exe for detailed diagnosis.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="SideBySide" />
    <EventID Qualifiers="49409">33</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2011-01-24T10:55:00.000000000Z" />
    <EventRecordID>663</EventRecordID>
    <Channel>Application</Channel>
    <Computer>opaliss.demo.local</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Microsoft.VC90.CRT,processorArchitecture="x86",publicKeyToken="1fc8b3b9a1e18e3b",type="win32",version="9.0.21022.8"</Data>
 
    </Data>
    <Data>C:\Program Files (x86)\Common Files\Opalis Software\Opalis Integration Server\Extensions\SCServiceManagerClientExtension.dll</Data>
    <Data>
    </Data>

  </EventData>
</Event>

I've noticed that the SystemCenter IP's require the "Visual C++ 2005-2008-2010 Redistributable Package (x86)". I don't know what version is exactly needed.

You can find the 2005 version with links to the more recent versions here.

Have you confirmed that the .NET 3.51 feature has been installed on the server?