I'm just reading some Windows forums because Win 7 doesn't want to install drivers for it and it seems that I can be lucky that it works with FreeBSD
I'm going to play around with drivers to see which one will work best with rt61 chipset. It's also interesting that some other cards with the same chipset are working fine and D-Link may have some problems. I'm going to switch now from W7 back to FreeBSD to play a bit.
Update: I found something very interesting, I don't know is it a bug. After the install, if I click Configure wlan0 I can enter router password and it's working. However, if I hover the mouse over wireless icon and the router name show up I must not click on it and enter password - the system is going down. So, "Configure wlan0" - OK, right click on the icon, click on "dlink" - the system is going down.