He said that he has Chaos Launcher - just that he can not get the windowed mode plug-in to work.
Have you tried running StarCraft in a virtual machine? A large number of virtual machines (I used VMWare at the time) run in a separate window. You could use that to obtain a pseudo windowed mode when playing it in fullscreen through the VM.
My friend that plays SC over Linux uses this method to get it working - and it also gives him the benefit of having a windowed SC.
Hope this helped!