Download BIN2BOOT from this link:
http://dcxeal.virtualave.net/b2b-cdda-b1.zip
It will convert .BIN files (or .ISO files), to bootable CDI files.
Really though, if you have a .CUE, the other file should have been a .BIN rather than an .ISO. That's really strange. The .BIN/.CUE combination comes from a program called CDRWIN.