I'm using the last release of AsimCDFS.
Note that in order for the long file names to work the ISO needs to have them included at mastering stage. If they're not included you will get short names no matter what FS you run on your amiga.
As for the CF card, the Amiga only seems willing to format it into FAT.
Use
fat95 instead of the AmigaOS included CrossDOS and you'll have long file names.