First: If you want to run winuae you need an amiga kickstart image. (you know THE ROM) In your setup winuae doesn't find its location. If you have it just add the correct path in the setup of winuae. If you don't you need to got one. If you have a real amiga, you can grab an image, or you can buy it from cloanto. (amiga forever)Or you try search the web. 3.1 Kickstart recommended.
Second: After that you need the image disk of the Amiga Operation system. You can buy it also... Os3.1 recommended. But winuae capable to emulate the 3.9 Amiga os too. (much better)
Only then you can use any program on it (sas/c, vbbc etc.
to make your homework. (but also you need to have this apps, or try to find a freeware or sharware on aminet. There is a plenty on its site.
www.aminet.netKhmm... Which language do you programming?