PROBLEM RESOLVED! At least for now, right?
Anyone else following along this whole thread, good luck on your own.
Dlink DIR-615 wont connect with a wireless Realtek 802.11b/g Extensible device. Ran all the proper diagnostics but the problem persisted. The one thing I did not try was to make the router broadcast ONLY in 802.11g... since the router can only handle 802.11g. So easy to overlook. Anyway, it works fine now. Didn't need any special drivers or patchwork with the bios. I was just about to go buy a new wireless adapter too!
Petey7 is truly a Jedi Master, thx for all the help. Lemur, ur a champ too.