Have you tried without the ITE-utlility? In Vista there is a WindowsMobilityCenter where you can manage wifi, bluetoth .. Don't know if it comes with W7, but some similar program might be there. Can't you turn it on there?
Have you tried a driver for e.g U9215? I use a driver for my 9200 with version "v60005FSC_20080328" and it works great. The driver that came with the computer crashed and barely worked. Sorry I cant recall were I found it, but it was in FSC drivers in some model. The newest version for U92...