can't create Flash- Drive

hi:

I just purchased the new ATV Flash 4.0.1
downloaded the new image from apple
temp.dmg 240,102KB

then it says Image copy to my USB drive ok,

but I don’t see any files on my USB , i’m running Windows XP,

it’s a 4GB USB flash drive, I alreaedy formatted with the suggested HP formatting tool,

any idea ?
are we, as Windows user, be able to see the files on the Flash drive ?

some updates.
actually although I can’t see the files, the files are there in Mac Format,
that’s why my PC can’t see it.

Once i plugin to Apple TV, it install ATV Flash successfully.