use p2 installable sdk for platform.
diff --git a/sourceediting/development/org.eclipse.wst.xml.vex.releng/build.properties b/sourceediting/development/org.eclipse.wst.xml.vex.releng/build.properties
index 9fe218c..cfed099 100644
--- a/sourceediting/development/org.eclipse.wst.xml.vex.releng/build.properties
+++ b/sourceediting/development/org.eclipse.wst.xml.vex.releng/build.properties
@@ -18,7 +18,7 @@
 JAVA50_HOME=${JAVA_HOME}
 dependencyURLs=http://download.eclipse.org/tools/orbit/downloads/drops/S20100508202910/orbit-S20100508202910.zip
 repositoryURLs=http://download.eclipse.org/releases/helios
-IUsToInstall=org.eclipse.sdk.feature.group,org.eclipse.wst.xml_ui.feature.feature.group
+IUsToInstall=org.eclipse.sdk.feature.group+org.eclipse.wst.xml_ui.feature.feature.group
 
 
 #what steps should we do? default: build.steps=buildUpdate,buildZips,buildTests,generateDigests,test,publish,cleanup