Universal installer won't install JBDS on WinXP 64b because of wrong paths (slash/backslash)

C:\Documents and Settings\jbossqa>java -jar "My Documents\Downloads\jbdevstudio-product-universal-5.0.0.v201112150534M-H62-M5(2).jar"
-jar "C:\Documents and Settings\jbossqa\jbdevstudio/studio/p2/director/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar" -l -r "jar:file:///C:/Documents%20and%20Settings/jbossqa/My%20Documents/Downloads/jbdevstudio-product-universal-5.0.0.v201112150534M-H62-M5(2).jar!/" -d "C:\Documents and Settings\jbossqa\jbdevstudio/studio"
Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.
C:\Documents and Settings\jbossqa>"C:\Documents and Settings\jbossqa\Local Settings\Temp\izpack8413148036882967707.bat"
C:\Documents and Settings\jbossqa>set ERRORLEVEL=
C:\Documents and Settings\jbossqa>"Z:\env\jdk1.6.0_26_x64\jre/bin\java" -jar "C:\Documents and Settings\jbossqa\jbdevstudio/studio/p2/director/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar" -l -r "jar:file:///C:/Documents0and0Settings/jbossqa/My0Documents/Downloads/jbdevstudio-product-universal-5.0.0.v201112150534M-H62-M5(2).jar!/" -d "C:\Documents and Settings\jbossqa\jbdevstudio/studio"
Unable to load repositories.
Application failed, log file location: C:\Documents and Settings\jbossqa\jbdevstudio\studio\p2\director\configuration\1324027982575.log
Installation failed.
C:\Documents and Settings\jbossqa>echo REQUEST_FINISHED_13
-jar "C:\Documents and Settings\jbossqa\jbdevstudio/studio/p2/director/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar" -roaming -vm "Z:\env\jdk1.6.0_26_x64\jre" -r "jar:file:///C:/Documents%20and%20Settings/jbossqa/My%20Documents/Downloads/jbdevstudio-product-universal-5.0.0.v201112150534M-H62-M5(2).jar!/" -d "C:\Documents and Settings\jbossqa\jbdevstudio/studio" -p jbds -i com.jboss.jbds.all -profileProperties org.eclipse.update.install.features=true
Microsoft Windows [Version 5.2.3790]
(C) Copyright 1985-2003 Microsoft Corp.
C:\Documents and Settings\jbossqa>"C:\Documents and Settings\jbossqa\Local Settings\Temp\izpack4305099657156522360.bat"
C:\Documents and Settings\jbossqa>set ERRORLEVEL=
C:\Documents and Settings\jbossqa>"Z:\env\jdk1.6.0_26_x64\jre/bin\java" -jar "C:\Documents and Settings\jbossqa\jbdevstudio/studio/p2/director/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar" -roaming -vm "Z:\env\jdk1.6.0_26_x64\jre" -r "jar:file:///C:/Documents0and0Settings/jbossqa/My0Documents/Downloads/jbdevstudio-product-universal-5.0.0.v201112150534M-H62-M5(2).jar!/" -d "C:\Documents and Settings\jbossqa\jbdevstudio/studio" -p jbds -i com.jboss.jbds.all -profileProperties org.eclipse.update.install.features=true
Unable to load repositories.
Application failed, log file location: C:\Documents and Settings\jbossqa\jbdevstudio\studio\p2\director\configuration\1324027987419.log
Installation failed.
C:\Documents and Settings\jbossqa>echo REQUEST_FINISHED_13
-jar "C:\Documents and Settings\jbossqa\jbdevstudio/studio/plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar" -vm "Z:\env\jdk1.6.0_26_x64\jre" -application com.jboss.jbds.product.EclipseGenerator -noSplash -clean
java.lang.NullPointerException
        at java.io.FileInputStream.<init>(FileInputStream.java:116)
        at com.jboss.jbds.installer.CreateLinkPanel.addJREPath(CreateLinkPanel.java:187)
        at com.jboss.jbds.installer.CreateLinkPanel.addJREPath(CreateLinkPanel.java:155)
        at com.jboss.jbds.installer.CreateLinkPanel.panelActivate(CreateLinkPanel.java:54)
        at com.izforge.izpack.installer.InstallerFrame.switchPanel(Unknown Source)
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Source)
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Source)
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigate(Unknown Source)
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$100(Unknown Source)
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:662)
C:\Documents and Settings\jbossqa\jbdevstudio