Dell 1450 USB 64-bit driver?

I can't seem to find a Windows 64-bit driver for the Dell TrueMobile 1450 USB wireless adapter. Oddly enough, I can find drivers for everything else (my scanner, photo printer, usb speakers, video, sound, modem, etc.).
Is there one available? If so, how do I get it? I would prefer to get this working rather than go through hoops to get this machine on a wireless network for testing.
Dell systems (Question is for the one highlighted below):
A: Dimension 8400 (P4 3.4 HT/1GB RAM, 2x500GB Drives/Windows Media Center 2005 x86)
B: Dimension 4600 (P4 2.8/1GB RAM, 2x250GB Drives, Windows Vista BETA x86)
C: Dimension 4600C (P4 2.8 HT/1GB RAM, 250 GB Drive, Windows Media Center 2004 x86)
D: Dimension 5100C (P4D 3.0 Dual Core, 1GB RAM, 1x160GB Drive. Windows XP Pro x64)
E: Inspiron 6000D (Centrino 2.0, 512 MB RAM, 80GB Drive, Windows XP Pro x86)
F: Inspiron 9100 (P4 2.8 HT, 1GB RAM, 80GB Drive, Windows XP Home x86) 
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