Can you see all of the files for TransADF on the Amiga when you look at the contents of the PC floppy disk? If so then you should be OK. Remember than TransADF is an Amiga DOS utility and doesn't have a Workbench graphical front end. You have to run it from a CLI shell. Easiest way is to copy TransADF into your C Workbench folder then you have access to the utility at all times from the CLI.

If on the other hand you can't see the files properly then the best way to get TransADF onto the Amiga is to keep it as a LHA archive until you have it on the Amiga. The only problem with that is Workbench cannot read and uncompress LHA archives as standard, so you will first need to get LHA onto the Amiga. I recommend you do this by downloading this: lha.run It is a self extracting LHA archive so can be copyed to the Amiga via PC floppy disk and then extracted without needing any other utility just by double clicking the file and running it.

Hope that helps.