I installed Amiga Writer simply copying Mossys:C/Install and Installer commands in Sys:C. Double click on the Install icon inside AW CD and all done.
Amiga Writer is a really well done word processor and it's pity it's lost in time... Well, no options about exporting pdf files or what else but only ASCII format and RTF. Google Docs recognizes the RTF format and loaded document without any issue. No images are saved with AW. It's possible to load RTF files with Scriba and Cinnamon Writer too, though only Scriba allows to export your files in PDF format.