First off InCD became Nero. Second Nero only burns once and that is it, thus making it a CDROM, not a rewriteable disc, therefore it can not be used as a floppy.
I had the same problem. Now if you still have the InCd, which let you have cdrw capabilities, just use that software.
I also noticed you have three software programs that Burn CD's, a dangerous combination. Try to pick one and uninstall the rest before you have conflicts and can't use the CDRW drive at all.
And lets all ask ourselves why do we have a CDRW, but the software will not let us reuse the cd over again, useful for backups? We should all cry Foul@ :-[