If you do not recieve your confirmation email within a few hours, please email haloutau@gmail.com with your username for manual validation. Your account should be activated within 24 hours.
You may also reach out via any other listed contact on Admin Halo's about page: https://utaforum.net/members/halo.194/#about
As far as I know, whenever you try to import a VSQ into UTAU, and vice-versa, if your system environment is not Japanese, it will turn into gibberish (except if it is in romaji). There is a way, though I never tried, and a bit time consuming that is using the VSQ lyrics extractor: http://utaforum.net/index.php?topic=406.0
OR you could use the program Cadencii as a bridge to export a UST from an imported VSQ, succesfully: http://pt.sourceforge.jp/projects/cadencii/releases/?package_id=9119