upgrade fedora 4 to 5 Unable to satisfy dependencies

Iam trying update my hosting platfrom remotely from fedora core 4 to 5.
First thing I've done is download: fedora-release-5-5.noarch.rpm and install it with rpm. (source: http://www.brandonhutchinson.com/Upgrading_Red_Hat_Linux_with_yum.html)
After this I've tried to upgrade with yum -y upgrade.

At the end Iám getting the following errors:
===================================================
Error: Missing Dependency: libdbus-1.so.1 is needed by package dhcdbd
Error: Unable to satisfy dependencies
Error: Package nmap needs libssl.so.5, this is not available.
Error: Package gnupg needs libcrypto.so.5, this is not available.
Error: Package squid needs libssl.so.5, this is not available.
Error: Package python needs libssl.so.5, this is not available.
Error: Package libc-client2004g needs libssl.so.5, this is not available.
Error: Package squid needs libcrypto.so.5, this is not available.
Error: Package dhcdbd needs libdbus-1.so.1, this is not available.
Error: Package samba needs libssl.so.5, this is not available.
Error: Package python needs libcrypto.so.5, this is not available.
Error: Package libc-client2004g needs libcrypto.so.5, this is not available.
Error: Package gnupg needs libssl.so.5, this is not available.
Error: Package samba needs libcrypto.so.5, this is not available.
Error: Package nmap needs libcrypto.so.5, this is not available.
============================================
But al the libs are in the /libs dir.
I've tried to make a symbolic link to the dir /usr/lib ... but didn't help either.. same errors.

How can I solve this problem and upgrade safetely to core 5 ?

Thanks in advance..