The floppy controller should remove the device not ready message.
As for UniATA, I was trying to suggest a full all in one driver you could use.
LiteOns will probably freeze if you dont time the off/on right, meaning VIA works in 95% of cases, but, can be a fooker with LiteOn
Trying uniATA could fix the final 5%, and be the best all in one for you.
Of course, this is just a suggestion, you could just remove drivers / use DOS for Freezing LiteOns.
I myself, would try uniATA and see if it offers 100% compatability.