You can not view demos of previous versions in 1.1.0.3 because the protocol has changed(I think). Values have been altered from version to version(Armour for instance) which means if you were to play a demo from 1.0 in 1.1 it would cause all kinds of errors. The replay would not match your experience.
You can view those demos in their respective versions.
You can view those demos in their respective versions.