The best way to diagnose this is to copy the command line that FinalBuilder is using to call the IncrediBuild BuildConsole.exe and try it on the command line. If the command works then let me know and I’ll look into it, if it doesn’t work then maybe you’re missing some option? Try contacting the IncrediBuild guys and see if they can solve the problem?
You might be looking to add additional include and library folders. The additional folders specified in VS 2005 won’t be used in command line builds. When building with msbuild for example you need to specify environment variables for additional include and library folders.