Naa SETool does not require special drivers.
What did you use to flash? Was it SETool or something else?
And your phone works right? As in it functions properly right?
Oh ok I think i See the problem. After you IDENTIFY the phone you must AGAIN disconnect and reset (remove and replace the battery) and THEN click on WRITE Script. Then it's gonna say press 'c' and connect and only then you connect your phone.