Hello Boa, welcome back!
Im afraid that RTR is right.... you wont be able to upgrade through autoupdater, since HTC switched servers a few versions ago.
Not sure about your settings folder either, but its certainly worth trying, at least for the head position files. The stick.cfg has changed format to severs .jsm files, you wont be able to reuse that. Also, i wouldnt import the vid settings either - theres been lots of changes there, including some optimization codes and new options.