We'll create fresh WordPress site with WP_GMaps2 installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin allows the integration of Google Maps on your pages or posts using the WordPress Editor (TinyMCE). It supports multiple maps on the same post/page and within each map you can set many options, like the position of the marker, controls, icon of the marker, InfoWindow with Tabs with HTML support, etc. Give it a try.