I have found, as you have, that linux sometimes has trouble with files on DOS partitions. I find that I cannot use gzip/gunzip with files located on my fat32 partition. I have to copy deb files over to my linux partition before I can install them. Once copied, though, everything works fine.
As far as I know, you have to use dpkg to install a single deb, apt can't/won't do it. HOH, Avi Shevin [EMAIL PROTECTED]