Valete,
in the zip file there is the resume.xsd file which contain
an XML Schema translated from the XMLResume 1.5.1
DTD, and there are the two example files switched from
DTD to XML Schema.
HTH,
Ale
P.S.: I didn't add the char entities, I'm using only
unicode charsets since many years, feel free to add
that if you think differently.
An XML Schema for the XMLResume 1.5.1