xp64 question with the MN-700

I've installed the base station and went on the net with
my xp computer, it did an update for 13 meg... now when I
finally got the xp64 up and running, it also says there
is an update, so I downloaded that, same size, so figure
same file, but downloaded it anyways... go to the install
and it says it is the wrong operating system. Is there
an update or not?

Thanks

Chuck