[development] Updated my contributed theme to phptemplate, should I replace or add a new project

I maintain the Slash theme <http://drupal.org/project/slash> and have updated it to a phptemplate theme. It used to be a plain PHP theme. Do you think I should replace the existing files or add a new project (slash_pt?)? The theme still looks very similar but the code is very different. Fredrik P.S A problem is that I can't edit <http://drupal.org/project/slash> (something with the role I belong to lack permission for the input filter that insert large theme images). It would be nice if this could be fixed one way or another. -- Web site: <http://xdeb.org/wiki/Fredrik>