Getting your driver signed
In order to get their drivers signed, first you must be installable via an INF file. Once you have that, then you are eligble to be submit your driver through the Windows logo programs Unclassified program. Devices and drivers are not eligble to use the Windows logo as this category only tests for driver reliability and stability, not for actual functionality. Drivers that are submitted through this category are required to comply with all device fundamental requirements, including the requirement for x64 support.
For first timers going though the logo program, you should read the following link:
http://www.microsoft.com/whdc/getstart/testing.mspx
This will get you familiar with how to register with the online submission site (Winqual), give you direction on how to obtain the Windows Logo Kit (WLK) which contains the actual tests, and give you directions on how to receive assistance.
If you have any questions, feel free contact Logo Feedback at logofb@microsoft.com.