The Cloanto cd contains configurations for a plain A500 and A1200 Otherwise look for AIAB wich works fine.
For disk images/kickstart roms go to the Jambo! site
Especially the TOSEC site has many games including (very) rare ones. Unfortunately the site is in french (if you do not speak french). Besides, on the Cloanto CD must be a program called Amiga Explorer wich is an excellent tool for backing up your original games, using them with your emulator (Workbench 1.3 on any amiga required)