How to build Qwt 5.2.0

I am struggling to get Qwt 5.2.0 to build successfully for use in VS 2003 on Windows XP.
I have tried following the instructions in the Install file but these are rather flimsy and I can't get it to work.
Basically I open a console and browse to the Qwt folder. I then run qmake qwt.pro and get no feedback from this command so I can only assume that this is working - it does seem to create the makefile.
I added the necessary VS folder to my path and then run nmake and get the following result:

Microsoft (R) Program Maintenance Utility Version 7.10.3077
Copyright (C) Microsoft Corporation. All rights reserved.

cd src && qmake -o Makefile
cd src && nmake -f Makefile
The system cannot find the path specified.
NMAKE : fatal error U1077: 'cd' : return code '0x1'
Stop.

And now I have no idea, can anyone help?
Thanks.