Sony Vaio VGN-AR71S Missing Drivers After Windows 7 Upgrade

I recently upgraded my Sony Vaio VGN-AR71S laptop to Windows 7. All went well apart from two issues. My memory card slots no longer show under 'My Computer' and nothing is recognised when I insert a memory card into the slot...and secondly My built in web cam no longer works (although the mic does) Under device manager I have one yellow exclamation mark next to a USB device which I believe is my web cam and another under an unrecognised device which maybe my memory card slots.

I have tried the Sony support site and done a search on the web but so far I haven't found any drivers or solutions to my problem.