UMLTP23 — XMI files reference non-working URLs. Cannot import into tool.

The .xmi files for the UTP2 have links that do not work. Even when separately going to the OMG UML site and downloading the StandardProfile.xmi and the PrimitiveTypes.xmi, unable to load the utp2.xmi profile. Tool vendor (Cameo Systems Modeler)--they suggest that the problem is in the references in the profile. In the utp2.xmi import may be getting stuck on the UML.xmi "used project". It will not let me manually select the UML.xmi file as it says "NOT A USED PROJECT!" Many permutations of installation have been attempted. This is preventing effective use of the standard in its application of test to our system model.