Error - Java SDK already installed, but it's not.

877909

I am running WinXP SP3. I have the latest JRE installed ( 1.6.0_26-b03 ).

I downloaded the SDK with netbeans bundle.
It appeared to install correctly ( I wasn't really watching it ).
Netbeans runs, but complains it can't find the JDK.

Sure enough, there is no JDK folder under C:\Program Files\Java\ ( or anywhere else on my computer ).
I checked Add/Remove programs from control panel. Not listed there either.

So I tried to re-install, and it says netbeans is already installed, would you like to instal the JDK ?
I say yes, and it complains that it is already installed.

I really have no idea what's going on here.
I really don't care if it's installed already ( even though it's not ).
The installer should just re-install it.

Is there a way to force the installer to just install it ?