MacBook Pro 15 Windows 7 64 Bit Graphics Artifacts

Question

I have a MacBook Pro 15, Early Spring 2011, on which I installed Windows 7 64 bit Pro via Boot Camp 4.0. I get graphic artifacts almost every time I boot in Windows. An Apple Store tech said when I installed Windows, Apple only had a 32 bit Windows 7 graphic card driver, and that there is a conflict between Apple's Windows 7 32 bit driver and my Windows 7 64 bit OS. He said I would need to update my Mac OS and reinstall my Windows 7 64 bit using Boot Camp 5. I don't mind updating my Mac OS, but I cannot spend the many hours necessary to reinstall my Windows configuration.  Is there anyway to install an updated graphics card driver directly?

Answer 1

Ok, so after reading the responce from Jaygyver I made some progress, but let me first explain my hardware and the process I used to get everything working.
Hardware:
1) Kingston DT101G2 32Gb Memory stick -> Product Link
2) Macbook Pro 15-inch (Early 2011) - 2.2 GHz Intel Core i7, 4 GB 1333 MHz DDR3, AMD Radeon HD 6750M with 1024 MB VRAM, Thunderbolt Firmware version 22,1
Software:
1) Mac OSX 10.7.2
2) Original Windows 7 installation disk
3) Boot Camp 4.0 (Downloaded via Mac Boot Camp Assistant)
Installation process:
1) Boot Mac normally
2) Insert memory stick
3) Open "Applications / Utilities" and run the "Disk Utility" application
4) Select the memory stick volume
5) On the tabs above, on the right hand side of the window, click "Erase"
6) Ensure you select from the drop down menu the MS-DOS (FAT) Format
7) Click on erase on the button in the middle of the screen. Let it do its thing and then close "Disk Utility"
8) In "Spotlight" type "Boot Camp"
9) Run the Boot Camp Assistant application
10) view the instructions on the link I provided above.
Careful here:
After downloading Boot Camp onto the memory stick, click install windows. As soon as you get to the window where you are prompted to select your volume to install Windows on, click on the advanced tab in the windows installation window. Select the volume and then click on Format. MAKE SURE you select the correct volume as you don't want to format your OSX volume. That sould be that then!!
PS: Jaygyver was right, if the drivers don't work in windows after the initial first boot. Open the memory car in windows explorer and run the boot camp setup. It will install EVERYTHING, absolutely EVERYTHING. I didn't need to look for any drivers online at all.
Hope this helps!