Sample BW report execution

Hi

I want to just run a BW report in my portal. I have craeted a System object and even tested it. So that part works fine.

I created an iView for BW. It asked for System alias and BEx Web Application Query String. I have given value for my system alias. But i dont know what value i should give for Query string. I went through the earlier forums. There were things about InfoCube, Query, bookmark_ID etc..

I dont know any concepts of BW report. I just want to check if my connection are working. When i preview the iView it gives me a window with a ToolBar at the top and a message that says 'No authorization'.

There must be some built in reports which i can call from my portal. Can somebody help me in building the Query String so that i just get to see a simple report.

Suggestions would be rewarded.

Murali