Why can't I search a mounted folder with Spotlight?

Since Mac OS X v10.5, Apple's Spotlight has been written to exclude all filesystem mounts except those that Apple's built-in networking uses. Because of this, ADmitMac or DAVE mounted volumes will not be indexed or searched. This behavior continues in the current versions of OS X.

Devon Technologies has a freeware utility named EasyFind ( http://www.devon-technologies.com/products/freeware/index.html ) that is able to search volumes mounted with ADmitMac or DAVE.