Question : Problem: SBS 2003 Premium R2 plus Windows Server STD SP2 and Terminal Server

Hi Experts.
I do need your help for the configuration of the Terminal Server.
This is the situation:
SBS 2003 Premium R2 Primary Domain Controller server and Windows Server Standard 2003 SP2 as secondary DC sever.
My customer has remote workers who need to connect to the Server 2K3 using Terminal Server. As it is well know SBS 2003 R2 only supports two TS sessions simultaneously, so I had to reconfigure the secondary server to join the domain using the connectcomputer as a member server.
Check List:
-      Added the Terminal Services role to Windows Server 2003.
-      Configured Windows SBS 2003 R2 to provide licensing services.
-      Terminal Server license activated on SBS 2003 R2 Server.
-      10 TS device CALs where added to the SBS 2K3.
After finishing these tasks it was impossible to connect more than tow users.
Is there a problem with Server 2003 SP2? Does it need to be changed to R2 version?
Please, I will appreciate any advice to solve this problem.  

Answer : Problem: SBS 2003 Premium R2 plus Windows Server STD SP2 and Terminal Server

I am really sorry. The definitive solution was to redirect port 3389 on ISA Server to Terminal Server. Best regards.