[boost] Help setting up boost for vc7

I have MS VC++ 7.1 installed to the default location (C:\Program Files\Microsoft Visual Studio .NET 2003), O/S WinXPSP2 However, when I run Build.bat from the command line, it returns " \Utilities\Bin\x86 was unexpected at this time." This occurs if I let the script auto-detect and also if I specify the toolset as vc7. Can someone please steer me in the right direction? regards Chris Ward