Plug in No Page Comment working with Vantage
This may be useful to other users: I am using No Page Comment plugin with Vantage and it appears to work well.
I'm also using All In One Event Calendar from Time.Ly and although it needs a bit of modification of styles it is a good alternative to the Vantage event calendar. The major problem was seeing the events menu in the wordpress backend dashboard when the plugin was installed =it just wasn't visible. When I changed the theme from Vantage to the Twenty Eleven theme, it showed up fine, so it was a problem with the Vantage theme. I used the Admin Menu Editor plugin to directly add the links to all the Event admin pages into the dashboard menu and it's been working fine.