I had some
troubleinstalling mine. It was mostly a cable problem.
Did you use the flat cable supplied with the Catweasel? I too ran into a situation where I could use the Imagetool but not the CAT: amiga drive.
Mine works now, but it's very slow in the Amiga emulator.
I've purchased two new floppy drives from different manufacturers and will test them when I get around to it.