Use the sf/app/homescreentools, not the empty one in sf/tools/homescreentools. Add email_pub component to commonemail
source,dst,type,pattern,sysdef
http://developer.symbian.org/oss/FCL/sf/os/graphics/,/sf/os/graphics,branch,NewGraphicsArchitecture,layers.sysdef.xml
http://developer.symbian.org/oss/FCL/sf/os/kernelhwsrv/,/sf/os/kernelhwsrv,branch,CompilerCompatibility,layers.sysdef.xml