When I select a path from the Timing tab or the timing report, after launching Analyze Post-Place & Route Static Timing, and right-mouse-click Cross-Probe to Floorplan-Implemented, the complete path is not shown in the Floorplan-Implemented tab.
To work around this issue, use Floorplanner or FPGA Editor to view the paths.
This problem has been fixed in the latest 8.2i Service Pack available at:
<http://www.xilinx.com/xlnx/xil_sw_updates_home.jsp>
The first service pack containing the fix is 8.2i Service Pack 1.