Setup Website into IIS without going into subfolder

I have firwall server publishing monthly reports on to web server

I have to go through three steps to browse the reports

1 -  Browse link http://localhost:8080

2 - I get directory structure where the reports are generating

3 - I click on any report into hirarchy which takes me inside the folder

4 - I click reports.html to browse the report

Below is full path example

http://localhost:8080/One%20time%20Report_(9.1.2011-9.30.2011)/Report.htm

My question is how I can setup IIS if I click on report name "A" should browse without going into the folder and click "reports.htm"