Server 2008 & Server 2003

[darwinbrewer]

I have a server 2003 DC and a server 2008 joined to the 2003 domain. What I need to know is if i create a user on the DC how can i make the 2008 server automatically create this same user and vise versa ?

I cannot make the 2008 server a DC as we run Xenapp on it and Xenapp will not run on a DC.

Thanks in advance!