Exchange not detected

In an effort to replace my current CP, i downloaded  free trial HC8. I installed on Windows server 2008 R2 64bit and SQL server 2008. I have Exchange 2007 installed already.
After spending forever before i was able to login to HC8 control panel, the system did not detect my Exchange 2007 installation. Do i have to download a module or am i using the wrong Hosting controller version?
 
Thank you.

I think your HC remoting service is not running under domain administrator account. Run it under domain admin account and also did you install HC on your HUB server ?
As I know from their support team that its HC implementation to install it on HUB server. 
 
Also couple of days ago when I was configuring  it, I found Exchange configuration video tutorial on HC website under products section, try this as well.

Thanks men, that was the problem. I set  administrator account as logon for the remoting service and it is working fine.

Thanks, simon , the video tutorial an HC website is very helpfull