We don't normally deal with mice, but here are some sites that may help with information on them:

Caring for Orphaned Baby Rats or Mice
<http://www.rmca.org/Articles/orphans.htm>

The Pet Mouse FAQ
<http://www.horns.freeserve.co.uk/mouse.htm>

Mouse HelpNet
<http://members.aol.com/Reite/RoadshowContinues.html>

Species of Mice
<http://members.aol.com/MusBeMice/Species.html>

Finnmouse's Site
<http://redrival.com/finnmouse/engp/home.html>