How to create schema in Analysis server 2005



Hi,
Can anyone please help me regarding createion of schema/catalogue in
Analysis Server 2005 which I want to connect with REX. (using
http://<server_name>/olap/msmdpump.dll)
I have done all required setup for olap to run on IIS.

(REX is a java based gui for waRehouse EXplorer, which is capable of
exploring the cubes,dimensions and measures. It can even pass the MDX
queries).

.