OK, I've muddled through the process and it appears that I have a working ndiswrapper control of my Dell 1505 Wireless adapter. Following the ndiswrapper directions all the way through, I can get a response from ifconfig wlan0 and see all the great details. I can set the ESSID and the WEP encryption key and see the results of those settings with iwconfig wlan0. Everything appears to be fine, but...
The ndiswrapper instructions say, "Now, setup the network parameters for the interface wlan0. This varies from distribution to distrbution. Refer to your distributions's documents on how to do this." Problem is, I can't seem to find any details on how exactly to do this! Please, oh please, let me know what I need to do to "configure" my network. I am at the last stages of this and very excited to get it going! 8^)
BTW, once I'm done, I plan to write a HOWTO in which I will detail everything I have done so that others with this adapter will benefit from my last week of work.