it will only see the drives as a member or non memeber's
did you make a back up of your previous OS install?
take out the old raid card, then when ur pluggin the drives into the sata ports there might be 2 different coloured sata ports, use the 2 same coloured with the drives u wanna raid (just looked at pics of your motherboard and it looks like your raid satas are the ones that are pointing out and not the ones pointing off the side) then when u go into the bios it should be on the first screen 'configure sata as' and it will automatically be set as IDE and you want to change it to raid, exit and save the settings in the bios, you will more than likely need to install the raid drivers im not sure if i did on mines? just boot from the cd, get to the win 7 install menu and install the drivers from a flash drive i think is how u do it or the m/b driver disc that should work also, then when u start up you will need to press CTRL+I (not sure if thats the correct buttons for ICH10R) after it posts to get into the raid set up, select the discs in there and make them memeber discs (best to name it something i have mines as raid os) once its set up go back into your bios and go into where you select the boot device and select the raid drive to boot from
im stuck if you backed up your previous install of how to get that on the drivers personally i always do a fresh install of windows, but if you need to you can just go about installing your OS normally and after that installs that should be you sorted
sorry if this isnt the best guide mate ive only recently been using raid on my pc so im no expert in it yet experienced members will be able to point you in the direction if i have got it incorrect
good luck mate hope ya get on with it fine