Hotspots is perfect for what i need but I have a question regarding SEO.

My sitemap generator is not picking up the locations, for example, this URL:
http://mydomain.com/17:counsellor/351:andrew-cornick-counselling-and-psychotherapy

I have at the moment, over 250 of these types of links/hotspots and there will be more to add.

This is a valid URL, but my sitemap generator does not see it, nor does my google webmaster account.
Why is that and what can i do to rectify this?

Any help, much appreciated.
Thanks