Target platform has been updated to include Indigo SR2 bits. Links above updated too, but for convenience here they are:
http://download.jboss.org/jbosstools/updates/target-platform_3.3.indigo.SR2/latest/
http://download.jboss.org/jbosstools/updates/target-platform_3.3.indigo.SR2/e372M-wtp332M.target.zip
http://download.jboss.org/jbosstools/updates/target-platform_3.3.indigo.SR2/e372M-wtp332M.target.zip.MD5