The IW14TMSDEDXE2.dproj file is the correct package to use for Delphi XE2 with IW 14.
I have retested the packages here and haven't noticed any issues.
Can you please try to remove all files related to the TMS IntraWeb Component Pack and try installing again? Also make sure you are using the correct tmsdefs.inc file. For IW 14, remove any existing tmsdefs.inc file and rename tmsdefs140.inc to tmsdefs.inc.
Found the problem. And in case it helps anyone else ... the error was due the Intraweb uninstall not removing the IntraWeb_14_DXE2.dcp file from the ... Public\Documents\RAD Studio\9.0.Dcp folder.