Installation question

I am trying to install

I begin by clicking on

SAP INstallation Master

- SAP Netweaver 04 support release 1

- Java System

- MaxDB

- Central System

- Custom Installation

- Java system

It asks me for a reboot, and then...

I go to a screen called SAPInst DVD / CD Browser (SAP Package Request)

- Java DVD _______________________

It apparently wants me to specify a CD drive. I dont have a cd, I downloaded from this site.

It will not allow me to move forward from this point. I can not skip this, or I do not know how.

What do I do next ?

Thanks