I suspect most (if not all) localizers already have SVN accounts for mozilla.com (from [https://bugzilla.mozilla.org/show_bug.cgi?id=356627 bug 356627]). If you have an account already, and you would like to be able to manage the files in SVN yourself (this is everything that isn't dynamic data), please:
* Reopen the original bug that was filed to get you mozilla.com SVN access
* In the comments, request SVN access to(replace ___ with your locale):** svn+ssh://svn.mozilla.org/addons/trunk/app/site/locale/___ (replacing ___ with your locale)