Driver for Brother MFC 7150

where can I get the driver for my brother 7150 C MFC – took compute in for repairs and cannot locate my CD disk . Brothers records will show my equipment, because I had to get the machine replaced under waranty after about 6 months of working properly. I’d also like more info on the print head replacements, as I bought the MFC for over 600, exchanged for a working model, and then just recently had to pay 210 dollars more for a print head. Please point my way, Teri