The Virtex-II and Virtex-II Pro package files previously listed several pins as RSVD (reserved). The RSVD pins were assigned as UNBONDED and no longer listed in the package file in 6.1i Service Pack 3.
Due to customer feedback, RSVD pins are added back to package files and are listed as N.C. (Do Not Connect).
This change is reflected in the latest ISE Service Pack available at:
The first service pack containing the fix is 6.2i Service Pack 3.
Package pin-outs are also available in the device data sheets. The data sheet links are as follows: