It seems that there is a problem with your environment variables setup. Check what $ATISTREAMSDK is pointing to. You can do this through MyComputer > Propoerties > Environment settings. (or similar path .. sorry I don't have Vista).
If this doesn't work .. try replacing $(ATISTREAMSDK) with the actual path which should be something like C:\ProgramFiles\AMD APP\
That path will contain the lib\x86 folder and the include\ folder.
Hope this helps..
I have since done that, but now have the following error:
1>LINK : fatal error LNK1104: cannot open file 'SDKUtil.lib'
I've added in all of the lib file paths to the program, but I am still getting this error.
I've tried goggling this but I got a googlewhack which didn't really offer me any useful information . Right now, all I want to do is build and run the HelloCL program you get in the SDK. I've not even touched a line of code...