I'm using a D-Link DWL-G510 wireless PCI card with linux kernel 2.6.17-1.2187_FC5 and trying to use ndiswrapper 1.24 to install it.

I have downloaded the appropriate drivers according to the installation wiki how-to. The drivers are all in the same directory. When I install the drivers (NetA3AB.inf) and run ndiswrapper -l I get:

neta3ab driver installed

According to the guide I am supposed to have a 'hardware present' there aswell. I have tried plugging the card into a different pci slot and using two different versions of the driver (both from dlink.com and the CD that came with the card) all to no avail. All the guides and forums I've found only address the problem if the driver doesn't install at all.

After running depmod -a and modprobe ndiswrapper I ran dmesg and found:
ndiswrapper version 1.24 loaded (preempt=no,smp=yes)
but none of the other things I'm supposed to see.

The lights on the back of the card are both predominantly off with the 'power' light coming on every second or so but the 'activity' light always off.

Also I have windows XP installed on this computer and the card works fine with the drivers on the CD that accompanied the card.

Does anyone know of an avenue I might try to get this configured correctly?

You'll have to get the firmware for that card and put it in the firmware directory of your distro. Read /etc/hotplug/firmware.agent to learn where to put it. The firmware can be copied from your windows installation.
One thing about D-Link hardware: This brand is known to sell different chipsets under one name, I had a hard time getting the proper driver for one of those cards once.