Windows 7: no driver found

I'm trying to install windows 7 from iso found at http://www.mydigitallife.info/official-windows-7-sp1-iso-from-digital-river/ but when i press install it tells me to pick driver to install and i cannot go past it? I'm installing from usb and did the steps said in http://www.sevenforums.com/tutorials/2432-usb-windows-7-installation-key-drive-create-26.html thread and still no luck... tryed 2 Iso's with both same result.
Anyone know how to fix this ?

Fixed the problem, switched usb port when i got the error... pressed on searching for driver manually and i had motherboard drivers on the usb too, so i picked the motherboard driver and one of the drivers on the list can't remember which one but i took 2nd generation dram something. And now it's installing but i will post again if error occur again.

Everything worked fine!

Glad you got it sorted, I couldn't help as I have only ever created ISO's onto DVD.