Google Maps on Multisite

Does anyone know of any of the following (or similar plugins) that work with Multisite:

1. Google XML Sitemap
2. Google XML Sitemap for Images
3. Google XML Sitemap for Videos

Additionally, on some of my other non multisite wp blogs under Settings/Writing there is an 'Update Services that states:
"When you publish a new post, WordPress automatically notifies the following site update services. For more about this, see Update Services on the Codex. Separate multiple service URLs with line breaks."
In the form box below that I am able to place ping sites as I choose, such as: http://rpc.pingomatic.com/ as an example.
Is there a way to do this automatic pinging on my multisite blogs?

Thank you,
Jim