You should be able to ignore those warnings.
The first is caused by a version number feature used by the developers (compiles the SVN version number into the code) – we meant to remove it from the release but we forgot. If you really want to remove it you can try commenting out most of the lines in the svn_version.py script. I suggest ignoring it.
The second is an internal SCons warning – again, a warning, not an error. Just ignore it (we all do).
Check the bin/ folder – you did get the executeables you needed, right?
Reply to above:
Yes, I did have the executeables I needed after I installed SVN program. Rosetta 3.0 is working for the demos provided in the package.