ISA Resource Usage and Bus Enumeration

Hi all,
I am writing a NT driver for a modem ISA (non-pnp)card.
1.Are there any way to findout the presence of my card in the bus?
2. I want to claim my hardware resources with a custom IOCTL. because the
application send me the details of resources it wants to use. Can i use
IoReportResourceUsage in a dispatch routine.
I would appreciate any advice/direction offered
Thanks
Shanavas