Take a Look at "The Green Amiga Alien Guide"
http://guide.abime.net/home.htm simple guides
for setting up winuae and usinf workbench disk in ADF format.
bye the way author sleeps at "amiga eab"
Plus take a look here this is a alternative to TGAAG
http://www.pcguru.plus.com/uae_faq.html . PCguru Emulation Guide for the amiga
jump to the bottom of the web page and find F.A.Q guides:
Winuae Installation F.A.Q.
Winuae Disk Images, ROMs, and File Transfer F.A.Q.
Workbench Installation F.A.Q.