32-bit might be ok. I also failed this testing on a 64-bit platform. bcoz I don't have a Dell OEM key for 64-bit WSS 2003 EE. The 64-bit WSS 2003 SE cannot be activated either.
Storage Server Standard X64 R2 activates just fine (at least in VM on ESX 3.5 U3) As I said in my post: