Thanks for posting!
That's correct, in order to connect to a FM 10 data source, you'll need to setup your DSN using the FM 10 ODBC driver. This should be available in the installation files for FileMaker Server 10 Advanced.
In addition to the above, please make sure that you're setting up the DSN using the 32-bit version of the ODBC Administrator as the 64-bit version will not work with FileMaker's 32-bit drivers. You can find the 32-bit version of the ODBC Administrator in the following folder:
Thank you again for your answer and confirmation. I think it's very important to note where the 32-bit version of the ODBC driver in Windows Vista/7 is located. I've had a very difficult time in the past finding answers on google to said question.