Is Firebird/InterBase ODBC driver 2.0 compatible on Windows Server 2008 R2 and Windows Server 2012 R2?
Yes, based on the information found in the official help, the software is compatible with the mentioned versions of Windows Server. You need to reach the downloads page in order to download the necessary files.
Download page: http://www.firebirdsql.org/en/odbc-driver/
For documentation inquiries, use the Documentation page: http://www.firebirdsql.org/en/documentation/