EP6 / SAP 4.6B IDES connection and usage?

Hi, I have recently installed SAP R/3 4.6B IDES and just wondering what development I can do using EP6 SP9 sneak preview with SAP IDES?

Can anyone please let me know how to create system landscape for SAP IDES in EP6 portal? I'm currently using the default user DDIC, how can is create a client copy of DDIC as a different user?

I assume SAP IDES is very similiar to the SAP R/3 realtime systems, so please let me know from your experience what all developments I can do using EP6 with SAP IDES?

Thanks

Siva