hi,
thats weird,
after successful "ant install.demo" in C:\Tools\jbpm-installer\
you should have this folder:
C:\Tools\jbpm-installer\jboss-as-7.0.2.Final\standalone\
but there is no log folder inside the standalone folder?
I am not sure about the development tools that come in conflict with jboss AS.
Regards,
Thomas Setiabudi