The ISE 9.2i install does not contain the latest version of the GTP Wizard (v1.5). GTP Wizard version 1.5 was included in 9.1 IP3 and will be included in 9.2 IP1 when it releases. In the meantime, GTP Wizard v1.5 can be downloaded and installed by following the directions in this Answer Record.
To install the patch, perform the following:
1. Install ISE 9.2i (and sp1 if you wish).
2. Download the file from:
3. Copy the file to the %Xilinx% directory.
4. Unzip the file (click Yes if asked to overwrite the files).