VISUAL C++ 2005 BETA BUILD ERROR

hey i have download the visual c++ 2005 beta and installed but wen i try to build code i get this error:

Merging manifest files…
mt.exe exited with error – The system cannot find the file specified.
Project : error PRJ0002 : Error result 1 returned from ‘C:\Program Files\Microsoft Visual Studio 8\VC\bin\mt.exe’