Downloaded the newest Windows Software onto my XP and it won't even open. Says Procedure entry point"apsGetInterFaceCount" could not be located in dynamic link library "wlanapi.dll. Also, could not locate in the same link "apslnitialize" either. I disabled google toolbar, etc.

Seems the D-Link or other wireless networking drivers/software you have isn't meant for XP SP3. See this KB article:Error message every time that you restart the computer after you install Windows XP Service Pack 3 To resolve this issue, check the Web site of the wireless network adapter's manufacturer for the latest device drivers that are available for a Windows XP SP3-based system. Then, download and install the latest device drivers for the wireless network adapter. Depending on the manufacturer, this will either replace the Wlanapi.dll file or update the device driver software to support the Windows Wlanapi.dll file.