The problem is that "apt-0.5.15cnc7-1.rpm" will not install without "libapt-pkg-libc6.3-6.so.2" present. It's not in the download library.
I get the same error when I run any of the following:
rpm -Uvh apt-0.5.15cnc7-1.i386.rpm rpm -Uvh apt-devel-0.5.15cnc7-1.i386.rpm rpm -Uvh apt-groupinstall-0.5.15cnc7-1.i386.rpm rpm -Uvh apt-python-0.5.15cnc7-1.i386.rpm
These RPMs need this library before they can be upgraded.
But the apt-0.5.15cnc7-1.i386.rpm package provides this library itself, so it shouldn't be a problem.
I just downloaded: http://download.fedora.redhat.com/pub/fedora/linux/extras/3/i386/apt-0.5.15cnc7-1.i386.rpm http://download.fedora.redhat.com/pub/fedora/linux/extras/3/i386/apt-devel-0.5.15cnc7-1.i386.rpm
and installed them without problems using rpm -Uvh ...
Which version do you currently have? $ rpm -qa 'apt*'
P.S. please trim unrelated text from replies you post to the list.
Paul.