Unable to change/modify the jre installation

Tested OS : windows
Tested bundle : 6U4 PIT (http://j2se.east/plugin/1.6.0_04-nightly/2007-07-19.12_44)

Steps to reproduce :
1. Install jre (6u4 PIT)
2. go to add or remove programs
3. choose jre(TM) 6 Family
4. Click on change button

Installer tries to modify the Java(TM) 6 family. During modification, installer is looking for jre1.6.0_04.msi file but that file is missing, so modification failed with error.
Image file attached.