Clustering - Unable to select user profiles from bubble

I've got most things working with gmap and I'm really impressed with the module so far, though I've got a problem with clustering users:

1. When I cluster user locations, when clicking on the cluster icon on the map, a bubble appears with all user names in that location however, the usernames are not links (just text) so you can not click on each one to go to the individual users profile. Any ideas?

2. When enabling clustering, the "autozoom : Use AutoZoom" to set the zoom to show all user marker locations does not work and just sets to the default centre position.

3. Is there anyway of setting the clustering distance - so you define the maximum distance any two markers need to be from each other in order for them to be clustered together ? (perhaps in terms of pixels?). I've got a fair few users in Europe and people in the UK and Germany are being clustered together in the English Channel when all countries are displayed on the world view, which is a bit misleading.

cheers guys.