Default [Q] How do i regain root access?

I feel i have a peculiar situation. I have a Samsung Galaxy SIII SGH-T999 with the Hellfire 4.4.2 rom flashed to it. The default superuser app worked fine. But, i downloaded superuser because i like it better. I tried to update the binary but it always got stuck at the checking to make sure it is working part of the update. So, i downloaded the binary to flash through clockworkmod recovery. Now i have no root access whatsoever. I have no idea what to do. So my question is how do i regain root access and update the binary?