drivers are 12.10 will update
do you mean MSI afterburner ? my card is gigabyte does that matter ?
If you double click on the driver install .exe, it'll give you an option to install/uninstall.
Click uninstall and then choose 'custom'. Just select CCC from the list.
e) One last question is: i plan on getting another 7850 card at some point, firstly will my PSU handle it and secondly do i have to buy an identical card, does it have to be a 2gb one ? or does it just need to be a 7850 by the same manufacturer or can i buy ANY 7000 series radeon card ?
e/ no you will need a better psu and yes it has to be the same make and type for sli
By the way with that MB I'd advise against crossfiring two GPU's. You only have 1 X16 slot available and the other card would have to go into a X4. Possible yes, but ideal? No.