I am able to download drivers individually for my gigabyte board. On your board page, chose the download tab, select type "driver" then select your OS and then a list of all the drivers for your board should appear.
I was not able to find a board searching for "(GA-7VASMFS)."
Did a generic google search and it came up with This . I'm assuming you initially used Gigabyte's site and was given only the option to DL the Driver Detective. You may be able to contact them via e-mail and specifically request the driver if the previous file does not work for you. I would recommend the latter as manufacturer drivers are designed specifically for the device rather than risking a modified driver that could conflict with any number of devices in your machine.