Might try contacting Vantec if you still need the CD.
I lost the CD that came with this HD. Whenever I connect it to my Windows XP laptop, it asks for the installation CD (because I never had it connected t this laptop before).
I'm hoping someone might know if there's a way to get this thing installed without the CD? I went to Vantec's website, but I get a lot of "Page Not Found" messages....